diff --git a/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts b/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts
index cdf02cbc5..17d167626 100644
--- a/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts
+++ b/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts
@@ -46,6 +46,7 @@ export class ChatPanel extends SignalWatcher(
   static override styles = css`
     chat-panel {
       width: 100%;
+      user-select: text;
     }
 
     .chat-panel-container {