diff --git a/src/modules/ws/service/ws.impl.go b/src/modules/ws/service/ws.impl.go
index 447438b0..36409894 100644
--- a/src/modules/ws/service/ws.impl.go
+++ b/src/modules/ws/service/ws.impl.go
@@ -85,7 +85,17 @@ func (s *WSImpl) NewClient(uid string, groupIDs []string, conn *websocket.Conn)
 		for _, groupID := range groupIDs {
 			if v, ok := WsGroup.Load(groupID); ok {
 				groupUIDs := v.(*[]string)
-				*groupUIDs = append(*groupUIDs, uid)
+				// 避免同组内相同用户
+				hasUid := false
+				for _, uidv := range *groupUIDs {
+					if uidv == uid {
+						hasUid = true
+						break
+					}
+				}
+				if !hasUid {
+					*groupUIDs = append(*groupUIDs, uid)
+				}
 			} else {
 				WsGroup.Store(groupID, &[]string{uid})
 			}
@@ -145,6 +155,7 @@ func (s *WSImpl) clientWrite(wsClient *model.WSClient) {
 			s.CloseClient(wsClient.ID)
 			return
 		}
+		wsClient.LastHeartbeat = time.Now().UnixMilli()
 	}
 }
 
diff --git a/src/modules/ws/service/ws_send.impl.go b/src/modules/ws/service/ws_send.impl.go
index 62b7601a..8db8fcd9 100644
--- a/src/modules/ws/service/ws_send.impl.go
+++ b/src/modules/ws/service/ws_send.impl.go
@@ -41,6 +41,10 @@ func (s *WSSendImpl) ByClientID(clientID string, data any) error {
 	}
 
 	client := v.(*model.WSClient)
+	if len(client.MsgChan) > 90 {
+		NewWSImpl.CloseClient(client.ID)
+		return fmt.Errorf("msg chan over 90 will close client ID: %s", clientID)
+	}
 	client.MsgChan <- dataByte
 	return nil
 }