diff --git a/test/unittest/param/watcher_proxy_unittest.cpp b/test/unittest/param/watcher_proxy_unittest.cpp
index 83624aeb37f76aa8c348780a265cbde73cc16e97..c4e51377104c7ba40030d5092f521fdcb303ac44 100644
--- a/test/unittest/param/watcher_proxy_unittest.cpp
+++ b/test/unittest/param/watcher_proxy_unittest.cpp
@@ -254,7 +254,6 @@ public:
         WatcherManagerPtr watcherManager = GetWatcherManager();
         WATCHER_CHECK(watcherManager != nullptr, return -1, "Failed to get manager");
         watcherManager->OnStop();
-        watcherManager->Clear();
         return 0;
     }