diff --git a/MQTT.py b/MQTT.py
index fde5136..75d0fb0 100644
--- a/MQTT.py
+++ b/MQTT.py
@@ -26,6 +26,7 @@ class MQTTClient:
         self.client = mqtt.Client(client_id=subscribe_topic)
         self.client.username_pw_set(self.username, self.password)
         self.client.on_connect = self.on_connect
+        self.client.on_disconnect = self.on_disconnect
         self.client.on_message = self.on_message
 
     def on_connect(self, client, userdata, flags, rc):
@@ -33,8 +34,13 @@ class MQTTClient:
             self.client.subscribe(self.topic)
             client.publish(info_topic, payload=publish_payload(code=200, msg='成功订阅' + self.topic),
                            qos=0)
+            print("连接")
             subprocess.Popen(['/bin/bash /home/pi/agri_xumu/bash/start_push_stream.sh'], shell=True)
 
+    def on_disconnect(self, client, userdata, flags, rc):
+        print("断开")
+        subprocess.Popen(['/bin/bash /home/pi/agri_xumu/bash/stop_push_stream.sh'], shell=True)
+
     def on_message(self, client, userdata, msg):
         if not valid(msg, client):
             return