diff --git a/docs/document/harmonyos/quickstart.md b/docs/document/harmonyos/quickstart.md
index ed47a365d..7701f5214 100644
--- a/docs/document/harmonyos/quickstart.md
+++ b/docs/document/harmonyos/quickstart.md
@@ -112,6 +112,8 @@
 ### 1. SDK 初始化
 
 ```typescript
+import { ChatClient, ChatOptions } from '@easemob/chatsdk';
+
 let options = new ChatOptions({
   appKey: "你的 AppKey"
 });