diff --git a/hb/services/loader.py b/hb/services/loader.py
index b0ae32eb443f5d1050f4a48b5d88d41e2df52f7e..aa7b93f29a7a87029758efc376b109b7a6e660b3 100644
--- a/hb/services/loader.py
+++ b/hb/services/loader.py
@@ -52,7 +52,6 @@ class OHOSLoader(LoadInterface):
         self.build_xts = ""
         self.ignore_api_check = ""
         self.load_test_config = ""
-        self.subsystem_configs = ""
         self._subsystem_info = ""
 
     def __post_init__(self):
@@ -87,9 +86,6 @@ class OHOSLoader(LoadInterface):
         self.build_xts = self.args_dict.get('build_xts')
         self.ignore_api_check = self.args_dict.get('ignore_api_check')
         self.load_test_config = self.args_dict.get('load_test_config')
-        self.subsystem_configs = subsystem_scan.scan(self.subsystem_config_file,
-                                                     self.example_subsystem_file,
-                                                     self.source_root_dir)
 
         self._subsystem_info = subsystem_info.get_subsystem_info(
             self.subsystem_config_file,
@@ -132,14 +128,14 @@ class OHOSLoader(LoadInterface):
 
 # check method
 
-    '''Description: Check the parameters passed in config. If the parameters are not 
-                    specified or the file content pointed to by the parameters does not 
-                    exist, an exception will be thrown directly.
-    @parameter:none
-    @return :none
-    '''
     @throw_exception
     def _check_args(self):
+        '''Description: Check the parameters passed in config. If the parameters are not 
+                    specified or the file content pointed to by the parameters does not 
+                    exist, an exception will be thrown directly.
+        @parameter:none
+        @return :none
+        '''
         LogUtil.hb_info("Checking all build args...")
         # check subsystem_config_file
         if not read_json_file(self.subsystem_config_file):
@@ -204,124 +200,87 @@ class OHOSLoader(LoadInterface):
 
 # generate method
 
-    '''Description: Generate SystemCapability.json & syscap.json & syscap.para, dir:[
+    @throw_exception
+    def _generate_syscap_files(self):
+        '''Description: Generate SystemCapability.json & syscap.json & syscap.para, dir:[
         (//out/preloader/${product_name}/system/etc/SystemCapability.json),
         (//out/preloader/${product_name}/system/etc/syscap.json),
         (//out/preloader/${product_name}/system/etc/param/syscap.para)]
-    @parameter:none
-    @return :none
-    '''
-    @throw_exception
-    def _generate_syscap_files(self):
+        @parameter:none
+        @return :none
+        '''
+        def valid_syscap(syscap):
+            return 'syscap' in syscap and syscap['syscap'] is not None and len(syscap['syscap']) > 0 and syscap['syscap'] != [""]
+
+        def update_syscap_init_list(syscap_string, syscap_name, all_syscap_product, target_syscap_init_list):
+            target_syscap_init_str = "const."
+            if syscap_name in all_syscap_product:
+                if all_syscap_product[syscap_name]:
+                    target_syscap_init_str += syscap_name + '=true\n'
+                else:
+                    return syscap_string
+            else:
+                if syscap_string.endswith('true'):
+                    target_syscap_init_str += syscap_name + '=true\n'
+                elif syscap_string.endswith('false'):
+                    return syscap_string
+                else:
+                    target_syscap_init_str += syscap_string + "=true\n"
+
+            if target_syscap_init_str not in target_syscap_init_list:
+                target_syscap_init_list.append(target_syscap_init_str)
+            return None
+
         pre_syscap_info_path = os.path.dirname(self.platforms_config_file)
-        system_path = os.path.join(self.source_root_dir, os.path.join(
-            os.path.dirname(self.platforms_config_file), "system/"))
-        syscap_product_dict = read_json_file(
-            os.path.join(pre_syscap_info_path, "syscap.json"))
+        system_path = os.path.join(self.source_root_dir, pre_syscap_info_path, "system/")
+        syscap_product_dict = read_json_file(os.path.join(pre_syscap_info_path, "syscap.json"))
         syscap_info_list = self.parts_config_info.get('syscap_info')
+
+        all_syscap_set = {syscap_string.split('=')[0].strip() for syscap in syscap_info_list 
+                        if syscap['component'] in self.required_parts_targets_list and valid_syscap(syscap)
+                        for syscap_string in syscap['syscap']}
+
+        for key, value in syscap_product_dict['part_to_syscap'].items():
+            for syscap in value:
+                if syscap not in all_syscap_set:
+                    raise OHOSException("In config.json of part [{}],the syscap[{}] is incorrect, \
+                    please check the syscap name".format(key, syscap), "2008")
+
         target_syscap_with_part_name_list = []
         target_syscap_list = []
         target_syscap_for_init_list = []
-        all_syscap_list = []
+
         for syscap in syscap_info_list:
-            if syscap['component'] not in self.required_parts_targets_list:
+            if syscap['component'] not in self.required_parts_targets_list or not valid_syscap(syscap):
                 continue
-            if 'syscap' not in syscap or syscap['syscap'] is None \
-                    or len(syscap['syscap']) == 0 or syscap['syscap'] == [""]:
-                continue
-            for syscap_string in syscap['syscap']:
-                all_syscap_list.append(syscap_string.split('=')[0].strip())
 
-        for key, value in syscap_product_dict['part_to_syscap'].items():
-            for syscap in value:
-                if syscap not in all_syscap_list:
-                    raise OHOSException(
-                        "In config.json of part [{}],the syscap[{}] is incorrect, \
-                        please check the syscap name".format(key, syscap), "2008")
-
-        for syscap in syscap_info_list:
             remove_list = []
-            if syscap['component'] not in self.required_parts_targets_list:
-                continue
-            if 'syscap' not in syscap or syscap['syscap'] is None \
-                    or len(syscap['syscap']) == 0 or syscap['syscap'] == [""]:
-                continue
+            all_syscap_product = syscap_product_dict['syscap']
+
             for syscap_string in syscap['syscap']:
-                if syscap_string.startswith("SystemCapability.") is True:
-                    target_syscap_init_str = "const."
-                    syscap_name = syscap_string.split('=')[0].strip()
-                    all_syscap_product = syscap_product_dict['syscap']
-                    if syscap_name in all_syscap_product and not all_syscap_product[syscap_name]:
-                        remove_list.append(syscap_string)
-                        continue
-                    elif syscap_name in all_syscap_product and all_syscap_product[syscap_name]:
-                        target_syscap_init_str += syscap_name + '=true\n'
-                    else:
-                        if syscap_string.endswith('true'):
-                            target_syscap_init_str += syscap_name + '=true\n'
-                        elif syscap_string.endswith('false'):
-                            remove_list.append(syscap_string)
-                            continue
-                        else:
-                            target_syscap_init_str += syscap_string + "=true\n"
-                    if target_syscap_init_str not in target_syscap_for_init_list:
-                        target_syscap_for_init_list.append(
-                            target_syscap_init_str)
-                else:
+                if not syscap_string.startswith("SystemCapability."):
                     raise OHOSException("""In bundle.json of part [{}], The syscap string [{}] is incorrect,
                     need start with \"SystemCapability.\"""".format(syscap['component'], syscap_string), "2009")
 
-            for remove_str in remove_list:
-                syscap['syscap'].remove(remove_str)
-            for i in range(len(syscap['syscap'])):
-                if syscap['syscap'][i].endswith('true') or syscap['syscap'][i].endswith('false'):
-                    syscap['syscap'][i] = syscap['syscap'][i].split('=')[
-                        0].strip()
+                syscap_name = syscap_string.split('=')[0].strip()
 
+                remove_item = update_syscap_init_list(syscap_string, syscap_name, all_syscap_product, target_syscap_for_init_list)
+                if remove_item:
+                    remove_list.append(remove_item)
+
+            syscap['syscap'] = [syscap['syscap'][i].split('=')[0].strip() for i in range(len(syscap['syscap'])) 
+                                if syscap['syscap'][i].endswith('true') or syscap['syscap'][i].endswith('false')]
             syscap['syscap'].sort()
             target_syscap_with_part_name_list.append(syscap)
             target_syscap_list.extend(syscap['syscap'])
 
-        # Generate SystemCapability.json & syscap.json & syscap.para
-        target_syscap_list.sort()
-        syscap_info_dict = read_json_file(os.path.join(
-            pre_syscap_info_path, "SystemCapability.json"))
-        syscap_info_dict.update({'syscap': {'os': target_syscap_list}})
-        system_etc_path = os.path.join(system_path, "etc/")
-        if not os.path.exists(system_path):
-            os.mkdir(system_path)
-        if not os.path.exists(system_etc_path):
-            os.mkdir(system_etc_path)
-        syscap_info_json = os.path.join(
-            system_etc_path, "SystemCapability.json")
-        write_json_file(syscap_info_json, syscap_info_dict)
-        LogUtil.hb_info(
-            "generate syscap info file to '{}'".format(syscap_info_json))
-        target_syscap_with_part_name_list.sort(
-            key=lambda syscap: syscap['component'])
-        syscap_info_with_part_name_file = os.path.join(
-            system_etc_path, "syscap.json")
-        write_json_file(syscap_info_with_part_name_file, {
-            'components': target_syscap_with_part_name_list})
-        LogUtil.hb_info("generate syscap info with part name list to '{}'".format(
-            syscap_info_with_part_name_file))
-        if not os.path.exists(os.path.join(system_etc_path, "param/")):
-            os.mkdir(os.path.join(system_etc_path, "param/"))
-        target_syscap_for_init_file = os.path.join(
-            system_etc_path, "param/syscap.para")
-        file = open(target_syscap_for_init_file, "w")
-        file.writelines(target_syscap_for_init_list)
-        file.close()
-        LogUtil.hb_info("generate target syscap for init list to '{}'".format(
-            target_syscap_for_init_file))
-
-    '''Description: output infos for testfwk into a json file. \
-        (/out/${product_name}/build_configs/infos_for_testfwk.json)
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_infos_for_testfwk(self):
+        '''Description: output infos for testfwk into a json file. \
+            (/out/${product_name}/build_configs/infos_for_testfwk.json)
+        @parameter:none
+        @return :none
+        '''
         infos_for_testfwk_file = os.path.join(self.config_output_dir,
                                               "infos_for_testfwk.json")
         parts_info = self.parts_config_info.get('parts_info')
@@ -338,13 +297,13 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generate infos for testfwk to '{}'".format(
             infos_for_testfwk_file))
 
-    '''Description: output all target platform parts into a json file \
-        (/out/${product_name}/build_configs/target_platforms_parts.json)
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_target_platform_parts(self):
+        '''Description: output all target platform parts into a json file \
+        (/out/${product_name}/build_configs/target_platforms_parts.json)
+        @parameter:none
+        @return :none
+        '''
         target_platform_parts_file = os.path.join(self.config_output_dir,
                                                   "target_platforms_parts.json")
         write_json_file(target_platform_parts_file,
@@ -353,13 +312,13 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generate target platform parts to '{}'".format(
             target_platform_parts_file))
 
-    '''Description: Generate parts differences in different platforms, using phone as base. \
-        (/out/${product_name}/build_configs/parts_different_info.json)
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_part_different_info(self):
+        '''Description: Generate parts differences in different platforms, using phone as base. \
+        (/out/${product_name}/build_configs/parts_different_info.json)
+        @parameter: none
+        @return :none
+        '''
         parts_different_info = self._get_parts_by_platform()
         parts_different_info_file = os.path.join(self.config_output_dir,
                                                  "parts_different_info.json")
@@ -369,13 +328,13 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generate part different info to '{}'".format(
             parts_different_info_file))
 
-    '''Description: output platforms list into a gni file. \
-        (/out/${product_name}/build_configs/platforms_list.gni)
-    @parameter: none
-    @return: none
-    '''
 
     def _generate_platforms_list(self):
+        '''Description: output platforms list into a gni file. \
+        (/out/${product_name}/build_configs/platforms_list.gni)
+        @parameter: none
+        @return: none
+        '''
         platforms_list_gni_file = os.path.join(self.config_output_dir,
                                                "platforms_list.gni")
         _platforms = set(self.build_platforms)
@@ -388,13 +347,13 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generate platforms list to '{}'".format(
             platforms_list_gni_file))
 
-    '''Description: output auto install part into a json file. \
-        (/out/${product_name}/build_configs/auto_install_parts.json)
-    @parameter: none
-    @return: none
-    '''
 
     def _generate_auto_install_part(self):
+        '''Description: output auto install part into a json file. \
+        (/out/${product_name}/build_configs/auto_install_parts.json)
+        @parameter: none
+        @return: none
+        '''
         parts_path_info = self.parts_config_info.get("parts_path_info")
         auto_install_part_list = []
         for part, path in parts_path_info.items():
@@ -407,13 +366,13 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generate auto install part to '{}'".format(
             auto_install_list_file))
 
-    '''Description: output src flag into a json file. \
-        (/out/${product_name}/build_configs/parts_src_flag.json)
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_src_flag(self):
+        '''Description: output src flag into a json file. \
+        (/out/${product_name}/build_configs/parts_src_flag.json)
+        @parameter: none
+        @return :none
+        '''
         parts_src_flag_file = os.path.join(self.config_output_dir,
                                            "parts_src_flag.json")
         write_json_file(parts_src_flag_file,
@@ -422,13 +381,13 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info(
             "generated parts src flag to '{}/subsystem_info/parts_src_flag.json'".format(self.config_output_dir))
 
-    '''Description: output build target list into a json file.\
-        (/out/${product_name}/build_configs/required_parts_targets_list.json)
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_required_parts_targets_list(self):
+        '''Description: output build target list into a json file.\
+        (/out/${product_name}/build_configs/required_parts_targets_list.json)
+        @parameter: none
+        @return :none
+        '''
         build_targets_list_file = os.path.join(self.config_output_dir,
                                                "required_parts_targets_list.json")
         write_json_file(build_targets_list_file,
@@ -436,26 +395,26 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generate build targets list file to '{}'".format(
             build_targets_list_file))
 
-    '''Description: output build target info into a json file. \
-        (/out/${product_name}/build_configs/required_parts_targets.json)
-    @parameter: none
-    @return: none
-    '''
 
     def _generate_required_parts_targets(self):
+        '''Description: output build target info into a json file. \
+        (/out/${product_name}/build_configs/required_parts_targets.json)
+        @parameter: none
+        @return: none
+        '''
         build_targets_info_file = os.path.join(self.config_output_dir,
                                                "required_parts_targets.json")
         write_json_file(build_targets_info_file, self.required_parts_targets)
         LogUtil.hb_info("generate required parts targets to '{}'".format(
             build_targets_info_file))
 
-    '''Description: output platforms part by src into a json file. \
-        (/out/${product_name}/build_configs/platforms_parts_by_src.json)
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_platforms_part_by_src(self):
+        '''Description: output platforms part by src into a json file. \
+        (/out/${product_name}/build_configs/platforms_parts_by_src.json)
+        @parameter: none
+        @return :none
+        '''
         platforms_parts_by_src = self._get_platforms_parts()
         platforms_parts_by_src_file = os.path.join(self.source_root_dir,
                                                    self.config_output_relpath,
@@ -466,50 +425,50 @@ class OHOSLoader(LoadInterface):
         LogUtil.hb_info("generated platforms parts by src to '{}'".format(
             platforms_parts_by_src_file))
 
-    '''Description: output system configs info into 4 files:[
+
+    def _generate_target_gn(self):
+        '''Description: output system configs info into 4 files:[
         (/out/${product_name}/build_configs/subsystem_info/parts_list.gni),
         (/out/${product_name}/build_configs/subsystem_info/inner_kits_list.gni),
         (/out/${product_name}/build_configs/subsystem_info/system_kits_list.gni),
         (/out/${product_name}/build_configs/subsystem_info/parts_test_list.gni),
         (/out/${product_name}/build_configs/subsystem_info/BUILD.gn)]
-    @parameter: none
-    @return :none
-    '''
-
-    def _generate_target_gn(self):
+        @parameter: none
+        @return :none
+        '''
         generate_targets_gn.gen_targets_gn(self.required_parts_targets,
                                            self.config_output_dir)
 
-    '''Description: output phony targets build file. \
-        (/out/${product_name}/build_configs/phony_target/BUILD.gn)
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_phony_targets_build_file(self):
+        '''Description: output phony targets build file. \
+        (/out/${product_name}/build_configs/phony_target/BUILD.gn)
+        @parameter: none
+        @return :none
+        '''
         generate_targets_gn.gen_phony_targets(self.required_phony_targets,
                                               self.config_output_dir)
 
-    '''Description: output system configs info into 2 files:[
-        (/out/${product_name}/build_configs/subsystem_info/${platform}-stub/BUILG.gn),
-        (/out/${product_name}/build_configs/subsystem_info/${platform}-stub/zframework_stub_exists.gni)]
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_stub_targets(self):
+        '''Description: output system configs info into 2 files:[
+        (/out/${product_name}/build_configs/subsystem_info/${platform}-stub/BUILG.gn),
+        (/out/${product_name}/build_configs/subsystem_info/${platform}-stub/zframework_stub_exists.gni)]
+        @parameter: none
+        @return :none
+        '''
         generate_targets_gn.gen_stub_targets(
             self.parts_config_info.get('parts_kits_info'),
             self.target_platform_stubs,
             self.config_output_dir)
 
-    '''Description: output system capabilities into a json file. \
-        (/out/${product_name}/build_configs/${platform}_system_capabilities.json)
-    @parameter: none
-    @return :none
-    '''
 
     def _generate_system_capabilities(self):
+        '''Description: output system capabilities into a json file. \
+        (/out/${product_name}/build_configs/${platform}_system_capabilities.json)
+        @parameter: none
+        @return :none
+        '''
         for platform in self.build_platforms:
             platform_parts = self.target_platform_parts.get(platform)
             platform_capabilities = []
@@ -532,15 +491,15 @@ class OHOSLoader(LoadInterface):
                 "generated system capabilities to '{}/{}_system_capabilities.json'".format(
                     self.config_output_dir, platform))
 
-    '''Description: output system configs info into three json files:[
+
+    def _generate_subsystem_configs(self):
+        '''Description: output system configs info into three json files:[
         (/out/${product_name}/build_configs/subsystem_info/subsystem_build_config.json),
         (/out/${product_name}/build_configs/subsystem_info/src_subsystem_info.json),
         (/out/${product_name}/build_configs/subsystem_info/no_src_subsystem_info.json)]
-    @parameter: none
-    @return :none
-    '''
-
-    def _generate_subsystem_configs(self):
+        @parameter: none
+        @return :none
+        '''
 
         # The function has been implemented in module util/loader/subsystem_info.py
         LogUtil.hb_info(
@@ -769,25 +728,11 @@ class OHOSLoader(LoadInterface):
 
     def _execute_loader_args_display(self):
         LogUtil.hb_info('Loading configuration file...')
-        args = []
-        args.append('platforms_config_file="{}"'.format(
-            self.platforms_config_file))
-        args.append('subsystem_config_file="{}"'.format(
-            self.subsystem_config_file))
-        args.append('example_subsystem_file="{}"'.format(
-            self.example_subsystem_file))
-        args.append('exclusion_modules_config_file="{}"'.format(
-            self.exclusion_modules_config_file))
-        args.append('source_root_dir="{}"'.format(self.source_root_dir))
-        args.append('gn_root_out_dir="{}"'.format(self.gn_root_out_dir))
-        args.append('build_platform_name={}'.format(self.build_platform_name))
-        args.append('build_xts={}'.format(self.build_xts))
-        args.append('load_test_config={}'.format(self.load_test_config))
-        args.append('target_os={}'.format(self.target_os))
-        args.append('target_cpu={}'.format(self.target_cpu))
-        args.append('os_level={}'.format(self.os_level))
-        args.append('ignore_api_check={}'.format(self.ignore_api_check))
-        args.append('scalable_build={}'.format(self.scalable_build))
+        fields = ['platforms_config_file', 'subsystem_config_file', 'example_subsystem_file', 
+          'exclusion_modules_config_file', 'source_root_dir', 'gn_root_out_dir', 
+          'build_platform_name', 'build_xts', 'load_test_config', 'target_os', 
+          'target_cpu', 'os_level', 'ignore_api_check', 'scalable_build']
+        args = [f'{field}="{getattr(self, field)}"' for field in fields]
         LogUtil.write_log(self.config.log_path,
                           'loader args:{}'.format(args), 'info')
 
diff --git a/hb/services/preloader.py b/hb/services/preloader.py
index 1d79e7e8325b062c1d6693258a2bd6771ce3981b..e00dd98d97f98583094eebf61b6eb185185b32f7 100644
--- a/hb/services/preloader.py
+++ b/hb/services/preloader.py
@@ -54,12 +54,11 @@ class OHOSPreloader(PreloadInterface):
 
 # generate method
 
-    '''Description: generate platforms build info to "out/preloader/{product_name}/platforms.build"
-    @parameter:none
-    @return :none
-    '''
-
     def _generate_platforms_build(self):
+        '''Description: generate platforms build info to "out/preloader/{product_name}/platforms.build"
+        @parameter:none
+        @return :none
+        '''
         config = {
             'target_os': self._target_os,
             "target_cpu": self._target_cpu,
@@ -72,12 +71,12 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated platforms build info to {}/platforms.build'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate build gnargs prop info to "out/preloader/{product_name}/build_gnargs.prop"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_build_gnargs_prop(self):
+        '''Description: generate build gnargs prop info to "out/preloader/{product_name}/build_gnargs.prop"
+        @parameter:none
+        @return :none
+        '''
         all_features = {}
         for _part_name, vals in self._all_parts.items():
             _features = vals.get('features')
@@ -101,12 +100,12 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated build gnargs prop info to {}/build_gnargs.prop'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate features to "out/preloader/{product_name}/features.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_features_json(self):
+        '''Description: generate features to "out/preloader/{product_name}/features.json"
+        @parameter:none
+        @return :none
+        '''
         all_features = {}
         part_feature_map = {}
         for _part_name, vals in self._all_parts.items():
@@ -124,12 +123,12 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated features info to {}/features.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate syscap to "out/preloader/product_name/syscap.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_syscap_json(self):
+        '''Description: generate syscap to "out/preloader/product_name/syscap.json"
+        @parameter:none
+        @return :none
+        '''
         all_syscap = {}
         part_syscap_map = {}
         for _part_name, vals in self._all_parts.items():
@@ -145,12 +144,12 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated syscap info to {}/syscap.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate exclusion modules info to "out/preloader/product_name/exclusion_modules.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_exclusion_modules_json(self):
+        '''Description: generate exclusion modules info to "out/preloader/product_name/exclusion_modules.json"
+        @parameter:none
+        @return :none
+        '''
         exclusions = {}
         for _part_name, vals in self._all_parts.items():
             _exclusions = vals.get('exclusions')
@@ -162,23 +161,23 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated exclusion modules info to {}/exclusion_modules.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate build config info to "out/preloader/product_name/build_config.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_build_config_json(self):
+        '''Description: generate build config info to "out/preloader/product_name/build_config.json"
+        @parameter:none
+        @return :none
+        '''
         IoUtil.dump_json_file(
             self._outputs.build_config_json, self._build_vars)
         LogUtil.hb_info(
             'generated build config info to {}/build_config.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate build prop info to "out/preloader/product_name/build.prop"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_build_prop(self):
+        '''Description: generate build prop info to "out/preloader/product_name/build.prop"
+        @parameter:none
+        @return :none
+        '''
         build_vars_list = []
         for key, value in self._build_vars.items():
             build_vars_list.append('{}={}'.format(key, value))
@@ -188,23 +187,23 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated build prop info to {}/build.prop'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate parts to "out/preloader/product_name/parts.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_parts_json(self):
+        '''Description: generate parts to "out/preloader/product_name/parts.json"
+        @parameter:none
+        @return :none
+        '''
         parts_info = {"parts": sorted(list(self._all_parts.keys()))}
         IoUtil.dump_json_file(self._outputs.parts_json, parts_info)
         LogUtil.hb_info(
             'generated product parts info to {}/parts.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate parts config to "out/preloader/product_name/parts_config.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_parts_config_json(self):
+        '''Description: generate parts config to "out/preloader/product_name/parts_config.json"
+        @parameter:none
+        @return :none
+        '''
         parts_config = {}
         for part in self._all_parts:
             part = part.replace(":", "_")
@@ -216,12 +215,12 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated parts config info to {}/parts_config.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate subsystem config info to "out/preloader/product_name/subsystem_config.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_subsystem_config_json(self):
+        '''Description: generate subsystem config info to "out/preloader/product_name/subsystem_config.json"
+        @parameter:none
+        @return :none
+        '''
         if self._subsystem_info:
             self._subsystem_info.update(
                 self._product._get_product_specific_subsystem())
@@ -232,12 +231,12 @@ class OHOSPreloader(PreloadInterface):
         LogUtil.hb_info(
             'generated subsystem config info to {}/subsystem_config.json'.format(self._dirs.preloader_output_dir))
 
-    '''Description: generate systemcapability_json to "out/preloader/product_name/systemcapability.json"
-    @parameter:none
-    @return :none
-    '''
 
     def _generate_systemcapability_json(self):
+        '''Description: generate systemcapability_json to "out/preloader/product_name/systemcapability.json"
+        @parameter:none
+        @return :none
+        '''
         IoUtil.dump_json_file(
             self._outputs.systemcapability_json, self._product._syscap_info)
         LogUtil.hb_info(
diff --git a/rust/rustc_toolchain.gni b/rust/rustc_toolchain.gni
index 5a42cb7713226b66b9484d4d7d17c08e2035f19f..539798253a693b176f7c6ea00d919929630d1805 100644
--- a/rust/rustc_toolchain.gni
+++ b/rust/rustc_toolchain.gni
@@ -48,6 +48,7 @@ if (is_rust_nightly) {
 
 rust_path = "${rust_base}/${host_platform_dir}/${rust_version}"
 rust_bin = "${rust_path}/bin"
+sccache = "${rust_bin}/sccache"
 rustc = "${rust_bin}/rustc"
 clippy_driver = "${rust_bin}/clippy-driver"
 
diff --git a/toolchain/gcc_toolchain.gni b/toolchain/gcc_toolchain.gni
index 21af100a21a97cf66f917a06ad12e1e0fb05b509..e52a65b0bd4166d578fc8b6549afbb0303e60d6f 100755
--- a/toolchain/gcc_toolchain.gni
+++ b/toolchain/gcc_toolchain.gni
@@ -597,7 +597,7 @@ template("gcc_toolchain") {
 
         pool = "//build/toolchain:link_pool($default_toolchain)"
 
-        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile -- --crate-name {{crate_name}} -C prefer-dynamic {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $outfile LDFLAGS RUSTENV {{rustenv}}"
+        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --sccache=$sccache --rustc=$rustc --depfile=$depfile --rsp=$rspfile -- --crate-name {{crate_name}} -C prefer-dynamic {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $outfile LDFLAGS RUSTENV {{rustenv}}"
 
         description = "RUST staticlib $outfile"
         rust_sysroot = rust_sysroot_relative_to_out
@@ -617,7 +617,7 @@ template("gcc_toolchain") {
         # Don't add rspfile in rust_rlib tool.
         pool = "//build/toolchain:link_pool($default_toolchain)"
 
-        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile -- --crate-name {{crate_name}} -C prefer-dynamic {{source}} --crate-type {{crate_type}} $cc_command_args {{rustdeps}} {{externs}} --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $outfile LDFLAGS RUSTENV {{rustenv}}"
+        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --sccache=$sccache --rustc=$rustc --depfile=$depfile -- --crate-name {{crate_name}} -C prefer-dynamic {{source}} --crate-type {{crate_type}} $cc_command_args {{rustdeps}} {{externs}} --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $outfile LDFLAGS RUSTENV {{rustenv}}"
         description = "RUST rlib $outfile"
         rust_sysroot = rust_sysroot_relative_to_out
         outputs = [ outfile ]
@@ -646,7 +646,7 @@ template("gcc_toolchain") {
           minidebug_switch = " --mini-debug"
         }
 
-        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -Clink-arg=-Wl,-soname=\"$cdylibname\" -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}"
+        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --sccache=$sccache --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -Clink-arg=-Wl,-soname=\"$cdylibname\" -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}"
 
         description = "RUST cdylib $outfile"
         rust_sysroot = rust_sysroot_relative_to_out
@@ -674,7 +674,7 @@ template("gcc_toolchain") {
         if (full_mini_debug && !is_debug) {
           minidebug_switch = " --mini-debug"
         }
-        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS RUSTENV {{rustenv}}"
+        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --sccache=$sccache --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS RUSTENV {{rustenv}}"
 
         description = "RUST bin $outfile"
         rust_sysroot = rust_sysroot_relative_to_out
@@ -703,7 +703,7 @@ template("gcc_toolchain") {
         if (full_mini_debug && !is_debug) {
           minidebug_switch = " --mini-debug"
         }
-        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}"
+        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --sccache=$sccache --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}"
 
         description = "RUST dylib $outfile"
         rust_sysroot = rust_sysroot_relative_to_out
@@ -733,7 +733,7 @@ template("gcc_toolchain") {
         if (full_mini_debug && !is_debug) {
           minidebug_switch = " --mini-debug"
         }
-        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}"
+        command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --sccache=$sccache --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}"
 
         description = "RUST proc-macro $outfile"
         rust_sysroot = rust_sysroot_relative_to_out
diff --git a/toolchain/rustc_wrapper.py b/toolchain/rustc_wrapper.py
index 0aca7682e907dd1060506bd98e03083cb90da67e..1b2eb620973e87eab7d6a3ebdca9fde1b37abdd5 100755
--- a/toolchain/rustc_wrapper.py
+++ b/toolchain/rustc_wrapper.py
@@ -44,8 +44,10 @@ def exec_formatted_command(args):
     rustenv = remaining_args[rustenv_index + 1:]
 
     rustc_args.extend(["-Clink-arg=%s" % arg for arg in ldflags])
-    rustc_args.insert(0, args.rustc)
-
+    rustc_args.insert(0, args.clippy_driver)
+    os.environ['RUSTC_WRAPPER'] = str(args.sccache)
+    os.environ['RUSTC'] = str(args.clippy_driver)
+    print(rustc_args)
     if args.rsp:
         flags = os.O_WRONLY
         modes = stat.S_IWUSR | stat.S_IRUSR
@@ -61,10 +63,11 @@ def exec_formatted_command(args):
         (key, value) = item.split("=", 1)
         env[key] = value
         fixed_env_vars.append(key)
-
-    ret = subprocess.run([args.clippy_driver, *rustc_args], env=env, check=False)
-    if ret.returncode != 0:
-        sys.exit(ret.returncode)
+    print(args.clippy_driver)
+    process = subprocess.Popen([f'{args.sccache}',*rustc_args], env=env)
+    returncode = process.wait()
+    if returncode != 0:
+        sys.exit(returncode)
 
     if args.depfile is not None:
         env_dep_re = re.compile("# env-dep:(.*)=.*")
@@ -88,6 +91,9 @@ def main():
     parser.add_argument('--clippy-driver',
                         required=True,
                         type=pathlib.Path)
+    parser.add_argument('--sccache',
+                        required=True,
+                        type=pathlib.Path)
     parser.add_argument('--rustc',
                         required=True,
                         type=pathlib.Path)