diff --git a/src/drawApp/lineApp.ts b/src/drawApp/lineApp.ts
index 8f859ff..a3c796c 100644
--- a/src/drawApp/lineApp.ts
+++ b/src/drawApp/lineApp.ts
@@ -262,6 +262,12 @@ export async function loadLineDatas(app: GraphicApp) {
     });
     let msgNotify: null | ((props?: QNotifyUpdateOptions | undefined) => void) =
       null;
+    Notify.create({
+      type: 'negative',
+      timeout: 0,
+      position: 'top-right',
+      message: '通信链接已断开！',
+    });
     app.on('websocket-connect-state-change', (connected) => {
       if (!connected && !msgNotify) {
         msgNotify = Notify.create({
@@ -272,6 +278,7 @@ export async function loadLineDatas(app: GraphicApp) {
         });
       } else if (msgNotify && connected) {
         msgNotify();
+        msgNotify = null;
       }
     });
     const lineNetStore = useLineNetStore();
diff --git a/src/drawApp/lineNetApp.ts b/src/drawApp/lineNetApp.ts
index 019ea0b..6db5851 100644
--- a/src/drawApp/lineNetApp.ts
+++ b/src/drawApp/lineNetApp.ts
@@ -152,6 +152,7 @@ export async function loadLineNetDatas(app: GraphicApp) {
         });
       } else if (msgNotify && connected) {
         msgNotify();
+        msgNotify = null;
       }
     });
   } else {