diff --git a/src/vscode_plugin/snippets/napi_class_snippets.json b/src/vscode_plugin/snippets/napi_class_snippets.json
index 424f298b..a5c03b40 100644
--- a/src/vscode_plugin/snippets/napi_class_snippets.json
+++ b/src/vscode_plugin/snippets/napi_class_snippets.json
@@ -18,7 +18,7 @@
     "   napi_ref wrapper_;",
     "};",
     "HelloWorld::HelloWorld(): value_(\"\"), env_(nullptr), wrapper_(nullptr) {}",
-    "HelloWorld::~HelloWorld() {}",
+    "HelloWorld::~HelloWorld() { napi_delete_reference(env_, wrapper_); }",
     "void HelloWorld::Destructor(napi_env env, void* nativeObject, [[maybe_unused]] void* finalize_hint)",
     "{",
     "  reinterpret_cast<HelloWorld*>(nativeObject)->~HelloWorld();",
@@ -45,18 +45,18 @@
     "}",
     "napi_value HelloWorld::GetValue(napi_env env, napi_callback_info info)",
     "{",
-    "  // Todo: you can use \"napigetinfo\" command to get snippets that get js context and arguments.",
+    "  // Todo: you can use \"napiobjectin\" command that get object param from js.",
     "  HelloWorld* obj;",
     "  // Retrieve obj (the C++ object) previously wrapped in jsThis (the ArkTS object), and perform subsequent operations.",
     "  napi_unwrap(env, jsThis, reinterpret_cast<void**>(&obj));",
-    "  // Todo: you can use \"napireturn_\" to choose command that return value to js.",
+    "  // Todo: you can use \"napistringutf8out\" command that return string utf8 value to js.",
     "}",
     "napi_value HelloWorld::SetValue(napi_env env, napi_callback_info info)",
     "{",
-    "  // Todo: you can use \"napigetinfo\" command to get snippets that get js context and arguments.",
+    "  // Todo: you can use \"napiobjectin\" command that get object param from js.",
     "  HelloWorld* obj;",
     "  napi_unwrap(env, jsThis, reinterpret_cast<void**>(&obj));",
-    "  // Todo: you can use \"napigetparam_\" to choose command that get params from js.",
+    "  // Todo: you can use \"napistringutf8in\" command that get string utf8 param from js.",
     "  return nullptr;",
     "}",
     "napi_value HelloWorld::Hello(napi_env env, napi_callback_info info)",