diff --git a/Makefile b/Makefile
index 66eddaccca3227fc159fa9c91f823db274b094db..095a63586701fe3260851d486014b54e16f5cc76 100755
--- a/Makefile
+++ b/Makefile
@@ -11,6 +11,9 @@ CDK_SRC_DIR="${K230_SDK_ROOT}/src/common/cdk"
 BUILDROOT_EXT_SRC_PATH="src/little/buildroot-ext"
 POST_COPY_ROOTFS_PATH=board/common/post_copy_rootfs
 UNITTEST_SRC_PATH=src/big/unittest
+TOOLCHAIN_DIR ?= $(HOME)/.kendryte/k230_toolchains
+RTT_TOOLCHAIN_INSTALL_BIN_DIR ?= $(TOOLCHAIN_DIR)/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin
+LINUX_TOOLCHAIN_INSTALL_BIN_DIR ?= $(TOOLCHAIN_DIR)/Xuantie-900-gcc-linux-5.10.4-glibc-x86_64-V2.6.0/bin
 
 #DOWNLOAD_URL=https://ai.b-bug.org/k230
 DOWNLOAD_URL?=https://kendryte-download.canaan-creative.com/k230
@@ -85,32 +88,35 @@ all .DEFAULT: check_src prepare_memory linux   little-core-opensbi buildroot ubo
 endif
 
 ifeq ($(NATIVE_BUILD),1)
-.PHONY: download_toolchain
-download_toolchain:
+.PHONY: dl_toolchain
+dl_toolchain:
 	@set -e; \
-	if [ ! -f toolchain/.toolchain_ready ];then \
-	echo "download toolchain"; mkdir -p  $(K230_SDK_ROOT)/toolchain ;\
-	wget -q --show-progress  -O $(K230_SDK_ROOT)/toolchain/$(notdir $(RTT_TOOLCHAIN_URL)) $(RTT_TOOLCHAIN_URL); \
-	wget -q --show-progress  -O $(K230_SDK_ROOT)/toolchain/$(notdir $(LINUX_TOOLCHAIN_URL))  $(LINUX_TOOLCHAIN_URL); \
+	mkdir -p  $(TOOLCHAIN_DIR); \
+	if [ ! -f "$(RTT_TOOLCHAIN_INSTALL_BIN_DIR)/$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX_RTT))gcc" ]; then \
+		if [ ! -f $(TOOLCHAIN_DIR)/$(notdir $(RTT_TOOLCHAIN_URL)) ]; then \
+			echo "download toolchain $(notdir $(RTT_TOOLCHAIN_URL))"; \
+			wget -q --show-progress -O $(TOOLCHAIN_DIR)/$(notdir $(RTT_TOOLCHAIN_URL)) $(RTT_TOOLCHAIN_URL); \
+		fi; \
+		echo "extract toolchain $(notdir $(RTT_TOOLCHAIN_URL))"; \
+		tar jxf $(TOOLCHAIN_DIR)/$(notdir $(RTT_TOOLCHAIN_URL)) -C $(TOOLCHAIN_DIR); \
+	fi; \
+	if [ ! -f "$(LINUX_TOOLCHAIN_INSTALL_BIN_DIR)/$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX_LINUX))gcc" ]; then \
+		if [ ! -f $(TOOLCHAIN_DIR)/$(notdir $(LINUX_TOOLCHAIN_URL)) ]; then \
+			echo "download toolchain $(notdir $(LINUX_TOOLCHAIN_URL))"; \
+			wget -q --show-progress -O $(TOOLCHAIN_DIR)/$(notdir $(LINUX_TOOLCHAIN_URL)) $(LINUX_TOOLCHAIN_URL); \
+		fi; \
+		echo "extract toolchain $(notdir $(LINUX_TOOLCHAIN_URL))"; \
+		tar jxf $(TOOLCHAIN_DIR)/$(notdir $(LINUX_TOOLCHAIN_URL)) -C $(TOOLCHAIN_DIR); \
 	fi;
 
+.PHONY: download_toolchain
+download_toolchain: dl_toolchain
+
 .PHONY: extract_toolchain
-extract_toolchain: download_toolchain
-	@set -e; \
-	if [ ! -f toolchain/.toolchain_ready ];then \
-	echo "extract toolchain"; \
-	md5=$(shell md5sum  $(K230_SDK_ROOT)/toolchain/$(notdir $(RTT_TOOLCHAIN_URL))  2>/dev/null  | awk '{print $$1}'  );\
-	[ "e6c0ce95844595eb0153db8dfaa74bcb" = "$${md5}" ]  ||  exit 4; \
-	md5=$(shell md5sum  $(K230_SDK_ROOT)/toolchain/$(notdir $(LINUX_TOOLCHAIN_URL))  2>/dev/null | awk '{print $$1}'  );\
-	[ "66a6571167767ffe9e9e1d5d5929f6a4" = "$${md5}" ]  || exit 3;\
-	for file in $(shell find ./toolchain -name "*.bz2"); do echo $$file;tar jxf $$file -C $(K230_SDK_ROOT)/toolchain; done; \
-	fi;
+extract_toolchain: dl_toolchain
 
 .PHONY: prepare_toolchain
-prepare_toolchain: extract_toolchain
-	@if [ ! -f toolchain/.toolchain_ready ];then \
-	touch toolchain/.toolchain_ready; \
-	fi;
+prepare_toolchain: dl_toolchain
 	@echo "toolchain is ready"
 endif
 
@@ -156,15 +162,10 @@ prepare_sourcecode:prepare_toolchain
 
 
 check_toolchain:
-	@if  [ ! -f  $(CONFIG_TOOLCHAIN_PATH_LINUX)/$(CONFIG_TOOLCHAIN_PREFIX_LINUX)gcc ] || \
-		 [ !   -f $(CONFIG_TOOLCHAIN_PATH_RTT)/$(CONFIG_TOOLCHAIN_PREFIX_RTT)gcc  ]; then \
-		if [ ! -f toolchain/.toolchain_ready ];then \
-			echo "please run command: make prepare_toolchain"; exit 1;  \
-		else \
-			echo "you need enter docker build;";\
-			echo "or ln -s $(shell realpath toolchain) /opt/toolchain," ;\
-			echo "because sdk build need /opt/toolchain" ; exit 1; \
-		fi; \
+	@if  [ ! -f  "$(call qstrip,$(CONFIG_TOOLCHAIN_PATH_LINUX))/$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX_LINUX))gcc" ] || \
+		 [ ! -f "$(call qstrip,$(CONFIG_TOOLCHAIN_PATH_RTT))/$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX_RTT))gcc" ]; then \
+		echo "Please run make dl_toolchain to download toolchains."; \
+		echo "toolchain directory: $(TOOLCHAIN_DIR)"; exit 1; \
 	fi;
 
 
@@ -569,6 +570,7 @@ help:
 	@echo "make"
 	@echo "Supported compilation options"
 	@echo "make                          -- Build all for k230";
+	@echo "make dl_toolchain             -- Download toolchain, only need run at first time";
 	@echo "make prepare_sourcecode       -- down source code";
 	@echo "make little-core-opensbi      -- Build little core opensbi for k230";
 	@echo "make big-core-opensbi         -- Build big core opensbi for k230";
diff --git a/configs/k230_canmv_rtt_evb_defconfig b/configs/k230_canmv_rtt_evb_defconfig
index 80d2f1c09565e653c9d04265b3c087e6d2a968dd..aced25d656033e08123397d527b31ff09d7524b1 100644
--- a/configs/k230_canmv_rtt_evb_defconfig
+++ b/configs/k230_canmv_rtt_evb_defconfig
@@ -34,9 +34,9 @@ CONFIG_CANAAN_SITE_IMG_NAME_PREFIX=""
 # toolchain configurations
 #
 CONFIG_TOOLCHAIN_PREFIX_RTT="riscv64-unknown-linux-musl-"
-CONFIG_TOOLCHAIN_PATH_RTT="/opt/toolchain/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin"
+CONFIG_TOOLCHAIN_PATH_RTT="${HOME}/.kendryte/k230_toolchains/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin"
 CONFIG_TOOLCHAIN_PREFIX_LINUX="riscv64-unknown-linux-gnu-"
-CONFIG_TOOLCHAIN_PATH_LINUX="/opt/toolchain/Xuantie-900-gcc-linux-5.10.4-glibc-x86_64-V2.6.0/bin"
+CONFIG_TOOLCHAIN_PATH_LINUX="${HOME}/.kendryte/k230_toolchains/Xuantie-900-gcc-linux-5.10.4-glibc-x86_64-V2.6.0/bin"
 
 #
 # Memory configuration
diff --git a/parse.mak b/parse.mak
index 297b502a54f323f01b1df93ac64da7db5999a665..13f0302c0c6f0bd5965b0decb44c24410cad22bb 100755
--- a/parse.mak
+++ b/parse.mak
@@ -19,11 +19,11 @@ export KCFLAGS=-DDBGLV=$(CONFIG_DBGLV)
 
 export RTT_CC		:= gcc
 export RTT_CC_PREFIX	:= $(CONFIG_TOOLCHAIN_PREFIX_RTT)
-export RTT_EXEC_PATH	:= $(CONFIG_TOOLCHAIN_PATH_RTT)
+export RTT_EXEC_PATH	:= $(call qstrip,$(CONFIG_TOOLCHAIN_PATH_RTT))
 
 export LINUX_CC	:= gcc
 export LINUX_CC_PREFIX	:= $(CONFIG_TOOLCHAIN_PREFIX_LINUX)
-export LINUX_EXEC_PATH	:=$(CONFIG_TOOLCHAIN_PATH_LINUX)
+export LINUX_EXEC_PATH	:= $(call qstrip,$(CONFIG_TOOLCHAIN_PATH_LINUX))
 
 export MPP_BUILD_DIR	:= $(BUILD_DIR)/big/mpp
 export RTT_SDK_BUILD_DIR	:= $(BUILD_DIR)/big/rt-smart
@@ -70,4 +70,3 @@ endif
 
 export UBOOT_DEFCONFIG 
 export BURNTOOL_DEFCONFIG 
-