diff --git a/components/SmartChatBox/useMessages.ts b/components/SmartChatBox/useMessages.ts
index 2f679c4..79f2312 100644
--- a/components/SmartChatBox/useMessages.ts
+++ b/components/SmartChatBox/useMessages.ts
@@ -148,7 +148,7 @@ export function useMessages({ config, onMessagesUpdate }: UseMessagesProps): [Me
     try {
       // 立即添加用户消息（临时显示）
       const userMessage: ChatMessage = {
-        id: uid(),
+        id: Date.now().toString(),
         role: "user",
         createdAt: Date.now(),
         blocks,