diff --git a/utils/filemgmt_libn/include/n_async/n_async_work_callback.h b/utils/filemgmt_libn/include/n_async/n_async_work_callback.h
index 6fb5146687ac9553de41bf525595d28770345415..69114c7226f5c7af7d3f627d7331a846687b48ed 100644
--- a/utils/filemgmt_libn/include/n_async/n_async_work_callback.h
+++ b/utils/filemgmt_libn/include/n_async/n_async_work_callback.h
@@ -28,6 +28,7 @@ public:
     NVal Schedule(std::string procedureName, NContextCBExec cbExec, NContextCBComplete cbComplete) final;
     void ThreadSafeSchedule(NContextCBComplete cbComplete);
     explicit operator bool() const;
+    void CleanRef();
 
 private:
     NAsyncContextCallback *ctx_ = nullptr;
diff --git a/utils/filemgmt_libn/include/n_async/n_ref.h b/utils/filemgmt_libn/include/n_async/n_ref.h
index 402a8600481f04ea221d0cddc7f02efb28e25e8e..8670ba492d8166720a59ef16c89069a2502da616 100644
--- a/utils/filemgmt_libn/include/n_async/n_ref.h
+++ b/utils/filemgmt_libn/include/n_async/n_ref.h
@@ -33,6 +33,7 @@ public:
         env_ = nullptr;
         ref_ = nullptr;
     }
+    void DeleteJsEnv();
 
 private:
     napi_env env_ = nullptr;
diff --git a/utils/filemgmt_libn/src/n_async/n_async_work_callback.cpp b/utils/filemgmt_libn/src/n_async/n_async_work_callback.cpp
index 8fc3bfd098c41d506769fc0a55ea2246fa5beef5..eca6444a2503690b3ce1dac298a4a187022339aa 100644
--- a/utils/filemgmt_libn/src/n_async/n_async_work_callback.cpp
+++ b/utils/filemgmt_libn/src/n_async/n_async_work_callback.cpp
@@ -27,6 +27,19 @@ namespace FileManagement {
 namespace LibN {
 using namespace std;
 
+void NAsyncWorkCallback::CleanRef()
+{
+    if (!ctx_) {
+        HILOGE("NAsyncWorkCallback ctx is nullptr");
+        return;
+    }
+    if (!bool(ctx_->cb_)) {
+        HILOGE("NAsyncWorkCallback ref is nullptr");
+        return;
+    }
+    ctx_->cb_.DeleteJsEnv();
+}
+
 NAsyncWorkCallback::NAsyncWorkCallback(napi_env env, NVal thisPtr, NVal cb) : NAsyncWork(env)
 {
     ctx_ = new(std::nothrow) NAsyncContextCallback(thisPtr, cb);
@@ -109,6 +122,11 @@ static void CallbackComplete(napi_env env, napi_status status, void *data)
 
     napi_value global = nullptr;
     napi_value callback = ctx->cb_.Deref(env).val_;
+    if (!bool(ctx->cb_)) {
+        HILOGE("failed to get ref.");
+        return;
+    }
+    
     napi_value tmp = nullptr;
     napi_get_global(env, &global);
     napi_status stat = napi_call_function(env, global, callback, argv.size(), argv.data(), &tmp);
diff --git a/utils/filemgmt_libn/src/n_async/n_ref.cpp b/utils/filemgmt_libn/src/n_async/n_ref.cpp
index d56a00ce9a9a65bf2ddbc82f9a46edf8b4c6b95d..33ae5fac2b0e6b95039e7706306167447133f360 100644
--- a/utils/filemgmt_libn/src/n_async/n_ref.cpp
+++ b/utils/filemgmt_libn/src/n_async/n_ref.cpp
@@ -50,6 +50,14 @@ NVal NRef::Deref(napi_env env)
     napi_get_reference_value(env, ref_, &val);
     return {env, val};
 }
+
+void NRef::DeleteJsEnv()
+{
+    if (ref_ && env_) {
+        napi_delete_reference(env_, ref_);
+    }
+    ref_ = nullptr;
+}
 } // namespace LibN
 } // namespace FileManagement
 } // namespace OHOS