diff --git a/lib/controller/discover/room_controller.dart b/lib/controller/discover/room_controller.dart
index 08d332b..8f121eb 100644
--- a/lib/controller/discover/room_controller.dart
+++ b/lib/controller/discover/room_controller.dart
@@ -157,7 +157,7 @@ class RoomController extends GetxController {
 
   Future<void> joinChat(CurrentRole role) async {
     final data = {
-      'channelId': rtcChannel.value?.channelId,
+      'channelId': RTCManager.instance.currentChannelId,
       'seatNumber': role == CurrentRole.maleAudience ? 1 : 2,
       'isMicrophoneOn': role != CurrentRole.normalUser ? true : false,
       'isVideoOn':
@@ -181,7 +181,7 @@ class RoomController extends GetxController {
   }
 
   Future<void> leaveChat() async {
-    final data = {'channelId': rtcChannel.value?.channelId};
+    final data = {'channelId': RTCManager.instance.currentChannelId};
     final response = await _networkService.rtcApi.disconnectRtcChannel(data);
     if (response.data.isSuccess) {
       isLive = false;
@@ -222,8 +222,7 @@ class RoomController extends GetxController {
 
   /// 发送公屏消息
   Future<void> sendChatMessage(String content) async {
-    final channelName =
-        rtcChannel.value?.channelId ?? RTCManager.instance.currentChannelId;
+    final channelName = RTCManager.instance.currentChannelId;
 
     final result = await _messageService.sendMessage(
       content: content,