diff --git a/star_lock/lib/talk/udp/udp_manage.dart b/star_lock/lib/talk/udp/udp_manage.dart
index 6a173438..d4371fa4 100644
--- a/star_lock/lib/talk/udp/udp_manage.dart
+++ b/star_lock/lib/talk/udp/udp_manage.dart
@@ -42,13 +42,16 @@ class UDPManage {
   int remoteUnlock = 0; // 是否远程开锁 1：开启 0：关闭
 
   void initUdp() async {
-    var listAddress = InternetAddress.lookup(host!);
-    listAddress.then((list) {
-      list.forEach((element) {
-        // print('Udp ----> element.address:${element.address} element.host:${element.host}');
-        host = element.address;
+    if (host != '') {
+      var listAddress = InternetAddress.lookup(host);
+      listAddress.then((list) {
+        list.forEach((element) {
+          // print('Udp ----> element.address:${element.address} element.host:${element.host}');
+          host = element.address;
+        });
       });
-    });
+    }
+
     await _initUdp();
   }