diff --git a/config/user_config.xml b/config/user_config.xml
index 6f1985bd970d10c752797491cf206688b5e9c8b3..c9d2ac61cea31ffc422cf10017fdde2ad83fe52d 100755
--- a/config/user_config.xml
+++ b/config/user_config.xml
@@ -63,6 +63,7 @@
   <!-- configure NFS mount path for test cases -->
   <NFS>
     <host_dir></host_dir>
+    <mnt_cmd></mnt_cmd>
     <board_dir></board_dir>
   </NFS>
 </user_config>
diff --git a/src/core/driver/lite_driver.py b/src/core/driver/lite_driver.py
index 72e2a1c5b9b7f1666720c6f5dd21a3cab8862fdc..4c140bf31b9ee1b6c242bbf7c7fee83caf93658d 100755
--- a/src/core/driver/lite_driver.py
+++ b/src/core/driver/lite_driver.py
@@ -57,6 +57,8 @@ class LiteUnitTest(IDriver):
     config = None
     log = platform_logger("LiteUnitTest")
     nfs_dir = ""
+    mnt_cmd = ""
+    umnt_cmd = ""
     lite_device = None
     result = None
 
@@ -105,6 +107,29 @@ class LiteUnitTest(IDriver):
             return
         self.log.info("lite device execute request success")
 
+    def _mount_umount_nfs_server(self):
+        #before execute each suits bin, mount nfs
+        self.mnt_cmd = UserConfigManager().get_user_config(
+            "NFS").get("mnt_cmd")
+        self.umnt_cmd = UserConfigManager().get_user_config(
+            "NFS").get("board_dir")
+        if self.mnt_cmd == "" or self.umnt_cmd == "":
+            self.log.error("no configure for mount and umount command")
+            return False
+        self.lite_device.execute_command_with_timeout("cd ..",
+            case_type=DeviceTestType.lite_cpp_test)
+        _, status, _ = self.lite_device.execute_command_with_timeout(
+            "umount /" + self.umnt_cmd, case_type=DeviceTestType.lite_cpp_test)
+        if not status:
+            self.log.error("execute umount command failed")
+            return False
+        _, status, _ = self.lite_device.execute_command_with_timeout(
+            "mount " + self.mnt_cmd, case_type=DeviceTestType.lite_cpp_test)
+        if not status:
+            self.log.error("execute mount command failed")
+            return False
+        self.log.info("execute mount command success")
+
     def _before_execute_test(self):
         """
         need copy test case to nfs dir
@@ -116,6 +141,7 @@ class LiteUnitTest(IDriver):
         if self.nfs_dir == "":
             self.log.error("no configure for nfs directory")
             return False
+        self._mount_umount_nfs_server()
         _, status, _ = \
             self.lite_device.execute_command_with_timeout("cd /{}".format(
                 UserConfigManager().get_user_config("NFS").get("board_dir")),