diff --git a/apps/common/utils/connection.py b/apps/common/utils/connection.py
index b7d1f165a..ea371f28f 100644
--- a/apps/common/utils/connection.py
+++ b/apps/common/utils/connection.py
@@ -23,6 +23,7 @@ class RedisPubSub:
     def __init__(self, ch, db=10):
         self.ch = ch
         self.redis = get_redis_client(db)
+        self.subscriber = None
 
     def subscribe(self):
         ps = self.redis.pubsub()
@@ -41,7 +42,9 @@ class RedisPubSub:
         :param handle: lambda item: do_something
         :return:
         """
+        self.close_handle_msg()
         sub = self.subscribe()
+        self.subscriber = sub
         msgs = sub.listen()
 
         try:
@@ -65,3 +68,8 @@ class RedisPubSub:
         except Exception as e:
             logger.error("Redis observer close error: ", e)
 
+    def close_handle_msg(self):
+        if self.subscriber:
+            self.subscriber.close()
+            self.subscriber = None
+
diff --git a/apps/notifications/ws.py b/apps/notifications/ws.py
index d1032b237..9936427b5 100644
--- a/apps/notifications/ws.py
+++ b/apps/notifications/ws.py
@@ -5,7 +5,7 @@ from channels.generic.websocket import JsonWebsocketConsumer
 from common.utils import get_logger
 from common.db.utils import safe_db_connection
 from .site_msg import SiteMessageUtil
-from .signals_handler import new_site_msg_chan
+from .signals_handler import NewSiteMsgSubPub
 
 logger = get_logger(__name__)
 
@@ -13,6 +13,10 @@ logger = get_logger(__name__)
 class SiteMsgWebsocket(JsonWebsocketConsumer):
     refresh_every_seconds = 10
 
+    def __init__(self, *args, **kwargs):
+        super(SiteMsgWebsocket, self).__init__(*args, **kwargs)
+        self.subscriber = None
+
     def connect(self):
         user = self.scope["user"]
         if user.is_authenticated:
@@ -23,6 +27,10 @@ class SiteMsgWebsocket(JsonWebsocketConsumer):
         else:
             self.close()
 
+    def disconnect(self, code):
+        if self.subscriber:
+            self.subscriber.close_handle_msg()
+
     def receive(self, text_data=None, bytes_data=None, **kwargs):
         data = json.loads(text_data)
         refresh_every_seconds = data.get('refresh_every_seconds')
@@ -56,4 +64,6 @@ class SiteMsgWebsocket(JsonWebsocketConsumer):
             if user_id in users:
                 ws.send_unread_msg_count()
 
-        new_site_msg_chan.keep_handle_msg(handle_new_site_msg_recv)
+        subscriber = NewSiteMsgSubPub()
+        self.subscriber = subscriber
+        subscriber.keep_handle_msg(handle_new_site_msg_recv)