diff --git a/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp b/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp
index 43bae0a641fe559f119748a490977681cc3a716a..e1041c87ee5b7970d45f7c58cca07d118334c00e 100644
--- a/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp
+++ b/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp
@@ -59,7 +59,7 @@ napi_value DirNExporter::CloseSync(napi_env env, napi_callback_info info)
         UniError(EBADF).ThrowErr(env, "Dir has been closed yet");
         return nullptr;
     }
-
+    lock_guard(dirEntity->lock_);
     dirEntity->dir_.reset();
     return nullptr;
 }
@@ -84,6 +84,7 @@ napi_value DirNExporter::Close(napi_env env, napi_callback_info info)
     }
 
     auto cbExec = [dirEntity](napi_env env) -> UniError {
+        lock_guard(dirEntity->lock_);
         DIR *dir = dirEntity->dir_.release();
         int ret = closedir(dir);
         if (ret == -1) {