diff --git a/build/builder/common/prebuild.py b/build/builder/common/prebuild.py
index c392c166d9beeacc4c387b46ab079520abda72fc..9f5989dfc4eba9b33a20f7c093d1113274019f35 100755
--- a/build/builder/common/prebuild.py
+++ b/build/builder/common/prebuild.py
@@ -26,24 +26,33 @@ def build_deps(output_dir):
         shutil.rmtree(output_dir)
     if not os.path.exists(abs_copy_path):
         os.makedirs(abs_copy_path) 
-    # build gn
-    gn_dir = os.path.join(output_dir, "gn-build")
-    cmd = ['git', 'clone', 'https://gitee.com/src-openeuler/gn.git', '-b', 'openEuler-22.03-LTS-SP1', gn_dir]
-    is_success, _output = exec_sys_command(cmd)
-    if is_success:
-        cur_work_dir = os.getcwd()
-        exec_sys_command(['tar', 'xf', os.path.join(gn_dir, 'gn-e1ac69b17da0c6d4f5e34e686690ff70c6a43e6f.tar.gz'), '-C', gn_dir])
-        os.chdir(gn_dir)
-        #exec_sys_command(['patch', '-p1<gn-always-python3.patch'])
-        os.makedirs(os.path.join(gn_dir, 'out'))
-        exec_sys_command(['cp', 'last_commit_position.h', 'out/'])
-        exec_sys_command(['python3', 'build/gen.py', '--no-last-commit-position', '--no-static-libstdc++'])
-        exec_sys_command(['ninja', '-C', 'out'])
-        os.chdir(os.path.join(gn_dir, "out"))
-        if os.path.exists("gn"):
-            exec_sys_command(['cp', 'gn', gn_path])
-            logger.info("build gn success")
-        os.chdir(cur_work_dir)
+
+    usr_bin_path = '/usr/bin/'
+    usr_gn_path = os.path.join(usr_bin_path, 'gn')
+    if os.path.exists(usr_gn_path):
+        exec_sys_command(['cp', usr_gn_path, gn_path])
+        logger.info("get gn success")
+    else:
+        # build gn
+        gn_dir = os.path.join(output_dir, "gn-build")
+        cmd = ['git', 'clone', 'https://gitee.com/src-openeuler/gn.git', '-b', 'openEuler-22.03-LTS-SP1', gn_dir]
+        is_success, _output = exec_sys_command(cmd)
+        if is_success:
+            cur_work_dir = os.getcwd()
+            exec_sys_command(['tar', 'xf', os.path.join(gn_dir, 'gn-e1ac69b17da0c6d4f5e34e686690ff70c6a43e6f.tar.gz'), '-C', gn_dir])
+            os.chdir(gn_dir)
+            #exec_sys_command(['patch', '-p1<gn-always-python3.patch'])
+            os.makedirs(os.path.join(gn_dir, 'out'))
+            exec_sys_command(['cp', 'last_commit_position.h', 'out/'])
+            exec_sys_command(['python3', 'build/gen.py', '--no-last-commit-position', '--no-static-libstdc++'])
+            exec_sys_command(['ninja', '-C', 'out'])
+            os.chdir(os.path.join(gn_dir, "out"))
+            if os.path.exists("gn"):
+                exec_sys_command(['cp', 'gn', gn_path])
+                logger.info("build gn success")
+                exec_sys_command(['sudo', 'cp', 'gn', usr_bin_path])
+                logger.info("copy gn success")
+            os.chdir(cur_work_dir)
 
 if __name__ == "__main__":
     sys.exit(main())
diff --git a/build/prebuild.sh b/build/prebuild.sh
index 2c4d3c6d5a2fc6ba765e5d15ed310dd4ca4d004f..e7e20102b6304b2ec87453118fde54a23d88ac40 100755
--- a/build/prebuild.sh
+++ b/build/prebuild.sh
@@ -67,37 +67,39 @@ python3 ${PROJECT_DIR}/build/builder.py check --install-packages $*
 # =============================================================================
 #
 # download prebuild files
+cd $home
+PREBUILD_DIR="ft_prebuild"
+if [ ! -d ${PREBUILD_DIR} ]; then
+mkdir ${PREBUILD_DIR}
+fi
+cd ${PREBUILD_DIR}
+FT_PREBUILD_DIR=$(pwd)
 
 # install prebuild library
-if [ ! -d ${PROJECT_DIR}/prebuilts/libs ]; then
-git clone https://gitee.com/yanansong/ft_engine_prebuild.git -b rpms ${PROJECT_DIR}/prebuilts/libs
+if [ ! -d ${FT_PREBUILD_DIR}/libs ]; then
+git clone https://gitee.com/yanansong/ft_engine_prebuild.git -b rpms ${FT_PREBUILD_DIR}/libs
 fi
 
 ARCHNAME=`uname -m`
 
-cd ${PROJECT_DIR}/prebuilts/libs/rpms/${ARCHNAME}
+cd ${FT_PREBUILD_DIR}/libs/rpms/${ARCHNAME}
 sudo ./installRPM
 
-cd ${PROJECT_DIR}
-rm -fr ${PROJECT_DIR}/prebuilts/libs
-
-# install prebuild include. delete download files
-if [ ! -d ${PROJECT_DIR}/prebuilts/inc ]; then
-git clone https://gitee.com/yanansong/devel_inc.git ${PROJECT_DIR}/prebuilts/inc
+# install prebuild include.
+if [ ! -d ${FT_PREBUILD_DIR}/inc ]; then
+git clone https://gitee.com/yanansong/devel_inc.git ${FT_PREBUILD_DIR}/inc
 fi
 
-# copy include files to /usr/include. delete download files
-cd ${PROJECT_DIR}/prebuilts/inc
+# copy include files to /usr/include. 
+cd ${FT_PREBUILD_DIR}/inc
 sudo cp -fr * /usr/local/include
-cd ${PROJECT_DIR}
-rm -fr ${PROJECT_DIR}/prebuilts/inc
 
 # install ft_surface_wrapper
-if [ ! -d ${PROJECT_DIR}/prebuilts/rpm/ft_surface_wrapper ]; then
-    git clone https://gitee.com/ShaoboFeng/ft_surface_wrapper.git ${PROJECT_DIR}/prebuilts/rpm/ft_surface_wrapper
+if [ ! -d ${FT_PREBUILD_DIR}/rpm/ft_surface_wrapper ]; then
+    git clone https://gitee.com/ShaoboFeng/ft_surface_wrapper.git ${FT_PREBUILD_DIR}/rpm/ft_surface_wrapper
 fi
-cd ${PROJECT_DIR}/prebuilts/rpm/ft_surface_wrapper/
-if [ ! -d ${PROJECT_DIR}/prebuilts/rpm/ft_surface_wrapper/build ]; then
+cd ${FT_PREBUILD_DIR}/rpm/ft_surface_wrapper/
+if [ ! -d ${FT_PREBUILD_DIR}/rpm/ft_surface_wrapper/build ]; then
     mkdir build
 fi
 
@@ -105,14 +107,14 @@ cd build
 cmake ..
 make -j6
 sudo make install
-rm -fr ${PROJECT_DIR}/prebuilts/rpm/ft_surface_wrapper
+rm -fr ${FT_PREBUILD_DIR}/rpm/ft_surface_wrapper
 cd ${PROJECT_DIR}
 
 # install mesa_fangtian
-if [ ! -d ${PROJECT_DIR}/prebuilts/rpm/binary ]; then
-    git clone https://gitee.com/ShaoboFeng/rpm-fangtian.git ${PROJECT_DIR}/prebuilts/rpm/binary
+if [ ! -d ${FT_PREBUILD_DIR}/rpm/binary ]; then
+    git clone https://gitee.com/ShaoboFeng/rpm-fangtian.git ${FT_PREBUILD_DIR}/rpm/binary
 fi
-cd ${PROJECT_DIR}/prebuilts/rpm/binary
+cd ${FT_PREBUILD_DIR}/rpm/binary
 ./install.sh
 cd ${PROJECT_DIR}