diff --git a/helper/object_helper.h b/helper/object_helper.h
index f754863bf4a6414104c47718d9363c5a40fb890f..35e3da15b994d4a355177ab866ce4576bf9cd7db 100644
--- a/helper/object_helper.h
+++ b/helper/object_helper.h
@@ -43,6 +43,7 @@ public:
             delete[] value;
         } else {
             delete value;
+            value = nullptr;
         }
     }
 };
@@ -60,6 +61,7 @@ public:
             delete[] data_;
         } else {
             delete data_;
+            data_ = nullptr;
         }
     }
 
diff --git a/plugin/timer.cpp b/plugin/timer.cpp
index 4cd59adbd8bed6f97299008c00d56ead877b1656..4ad23371c3a8fe249366a85bf4a78e46379fc6d1 100644
--- a/plugin/timer.cpp
+++ b/plugin/timer.cpp
@@ -31,7 +31,21 @@ TimerCallbackInfo::~TimerCallbackInfo()
     Helper::CloseHelp::DeletePointer(argv_, true);
 
     uv_timer_stop(&timeReq_);
-    uv_close(reinterpret_cast<uv_handle_t*>(&timeReq_), nullptr);
+    uv_close(reinterpret_cast<uv_handle_t*>(&timeReq_), [](uv_handle_t* handle) {
+        if (handle != NULL) {
+            delete (uv_timer_t*)handle;
+        }
+    });
+}
+
+void TimerCallbackInfo::DeleteTimerCallbackInfo()
+{
+    Helper::NapiHelper::DeleteReference(env_, callback_);
+    for (size_t idx = 0; idx < argc_; idx++) {
+        Helper::NapiHelper::DeleteReference(env_, argv_[idx]);
+    }
+    Helper::CloseHelp::DeletePointer(argv_, true);
+    uv_timer_stop(&timeReq_);
 }
 
 bool Timer::RegisterTime(napi_env env)
@@ -86,7 +100,7 @@ napi_value Timer::ClearTimer(napi_env env, napi_callback_info cbinfo)
     }
     TimerCallbackInfo* callbackInfo = iter->second;
     timerTable.erase(tId);
-    Helper::CloseHelp::DeletePointer(callbackInfo, false);
+    callbackInfo->DeleteTimerCallbackInfo();
     return Helper::NapiHelper::GetUndefinedValue(env);
 }
 
@@ -112,7 +126,7 @@ void Timer::TimerCallback(uv_timer_t* handle)
     }
     if (!callbackInfo->repeat_) {
         timerTable.erase(callbackInfo->tId_);
-        Helper::CloseHelp::DeletePointer(callbackInfo, false);
+        callbackInfo->DeleteTimerCallbackInfo();
     } else {
         uv_timer_again(handle);
     }
diff --git a/plugin/timer.h b/plugin/timer.h
index 08a2cb56665bdeed83d68e0a42c51e7dadb0ff12..a1087cb8ef9c99ceead6f053ecf4015fbe1fd6eb 100644
--- a/plugin/timer.h
+++ b/plugin/timer.h
@@ -45,6 +45,8 @@ struct TimerCallbackInfo {
     }
 
     ~TimerCallbackInfo();
+
+    void DeleteTimerCallbackInfo();
 };
 
 class Timer {
diff --git a/worker/worker.h b/worker/worker.h
index df288468ed53ec28cbc3f59224860395447e025c..41715ce03fbea2220a884b324eb344431262bf10 100644
--- a/worker/worker.h
+++ b/worker/worker.h
@@ -369,6 +369,7 @@ public:
             uv_run(loop, UV_RUN_DEFAULT);
         } else {
             HILOG_ERROR("worker:: Worker loop is nullptr when start worker loop");
+            return;
         }
     }