diff --git a/ptdbg_ascend/test/ut/compare/test_compare.py b/ptdbg_ascend/test/ut/compare/test_compare.py
new file mode 100644
index 0000000000000000000000000000000000000000..9f0c6f8ab5a9a17148d7ac8f4b732d0009e15129
--- /dev/null
+++ b/ptdbg_ascend/test/ut/compare/test_compare.py
@@ -0,0 +1,46 @@
+import os 
+import unittest 
+from ptdbg_ascend.compare.acc_compare import compare_by_op, read_dump_path
+from ptdbg_ascend.common.utils import CompareConst, CompareException, check_file_or_directory_path, \
+    check_compare_param 
+
+
+class TestCompareFunctions(unittest.TestCase):
+    def test_compare_by_op_when_dump_file_not_found(self):
+        op_name = "Functional_conv2d_10_forward"
+        op_name_mapping_dict = {
+            'Functional_conv2d_10_forward':[
+                'Functional_conv2d_10_forward.input.0', 'Functional_conv2d_10_forward.input.1'
+            ]
+        }
+        input_parma = {'npu_dump_data_dir':'npu_dump', 'bench_dump_data_dir':'gpu_dump'}
+        cos_sim, max_abs_err, err_msg = compare_by_op(op_name, op_name_mapping_dict, input_parma)
+        self.assertEqual(cos_sim, CompareConst.NAN)
+        self.assertEqual(max_abs_err, CompareConst.NAN)
+        self.assertIn('Dump file', err_msg)
+        self.assertIn('not found', err_msg)
+    
+    def test_read_dump_path_when_path_invalid(self):
+        noop_path = 'noop.path'
+        self.assertRaises(FileNotFoundError, read_dump_path, noop_path)
+    
+    def test_check_file_or_directory_path_when_file_is_invalid(self):
+        npu_pkl, npu_dump = 'noop.path', '../resources/compare/npu_dump.pkl'
+        self.assertRaises(CompareException, check_file_or_directory_path, npu_pkl, False)
+        self.assertRaises(CompareException, check_file_or_directory_path, npu_dump, True)
+    
+    def test_check_compare_param_when_param_invalid(self):
+        self.assertRaises(CompareException, check_compare_param, input_parma=['not a dict'],
+                output_path='', stack_mode=True, auto_analyze=False, fuzzy_match=False)
+        self.assertRaises(CompareException, check_compare_param, input_parma={},
+                output_path=233, stack_mode=True, auto_analyze=False, fuzzy_match=False)
+        self.assertRaises(CompareException, check_compare_param, input_parma={},
+                output_path='', stack_mode=3, auto_analyze=False, fuzzy_match=False)
+        self.assertRaises(CompareException, check_compare_param, input_parma={},
+                output_path='', stack_mode=True, auto_analyze=[], fuzzy_match=False)
+        self.assertRaises(CompareException, check_compare_param, input_parma={},
+                output_path='', stack_mode=True, auto_analyze=False, fuzzy_match='')
+
+if __name__ == '__main__':
+    unittest.main()
+                
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