diff --git a/dbOperate/mqttHelper.go b/dbOperate/mqttHelper.go
index c0f66b2..c720995 100644
--- a/dbOperate/mqttHelper.go
+++ b/dbOperate/mqttHelper.go
@@ -43,7 +43,10 @@ reConn:
 	opts.SetUsername(the.UserName)
 	opts.SetPassword(the.Password)
 	opts.SetClientID(the.ClientId)
+	opts.SetCleanSession(false) // 通常需要关闭 CleanSession
+	opts.SetResumeSubs(true)    // 启用 ResumeSubs
 	opts.SetOnConnectHandler(the.reConn2Subscribe)
+	opts.SetMaxReconnectInterval(10 * time.Second)
 	if sslEnable {
 		opts.SetTLSConfig(NewTlsConfig(caCertPath, clientCertPath, clientKeyPath))
 	}