diff --git a/src/page/Meeting/ChatBigWindow/index.tsx b/src/page/Meeting/ChatBigWindow/index.tsx
index 7dd53b2..dc1009f 100644
--- a/src/page/Meeting/ChatBigWindow/index.tsx
+++ b/src/page/Meeting/ChatBigWindow/index.tsx
@@ -45,6 +45,12 @@ const ChatBigWindow: React.FC = () => {
           break;
       }
     }
+    channel.postMessage({
+      type: 'chatBigWindowSendChannelMsg',
+      chatBigWindowSendChannelMsg: {
+        msg: '',
+      }
+    });
   }, []);
 
   return (
diff --git a/src/page/Meeting/index.tsx b/src/page/Meeting/index.tsx
index 84247ed..e87ab5e 100644
--- a/src/page/Meeting/index.tsx
+++ b/src/page/Meeting/index.tsx
@@ -327,7 +327,17 @@ const Meeting: React.FC = () => {
           GetRoomKickout(state.channelId, chatBigWindowGetRoomKickout.uid)
           break;
         case 'chatBigWindowSendChannelMsg':
-          sendMsg(chatBigWindowSendChannelMsg.msg)
+          if (chatBigWindowSendChannelMsg.msg) {
+            sendMsg(chatBigWindowSendChannelMsg.msg)
+          } else[
+            setChatList((res: any) => {
+              channel.postMessage({
+                type: 'chatList',
+                chatList: res,
+              })
+              return res
+            })
+          ]
           break;
         case 'noticeWindowPostRoomManager':
           postRoomManager({