diff --git a/mqtt-plugin/src/main/java/cc/iotkit/plugins/mqtt/service/MqttVerticle.java b/mqtt-plugin/src/main/java/cc/iotkit/plugins/mqtt/service/MqttVerticle.java
index 74899e2..24e3516 100755
--- a/mqtt-plugin/src/main/java/cc/iotkit/plugins/mqtt/service/MqttVerticle.java
+++ b/mqtt-plugin/src/main/java/cc/iotkit/plugins/mqtt/service/MqttVerticle.java
@@ -92,6 +92,7 @@ public class MqttVerticle extends AbstractVerticle implements Handler<MqttEndpoi
                             .setCertPath(config.getSslCert()));
         }
         options.setUseWebSocket(config.isUseWebSocket());
+        options.setTcpKeepAlive(true);
 
         mqttServer = MqttServer.create(vertx, options);
         mqttServer.endpointHandler(this).listen(ar -> {