diff --git a/src/App.vue b/src/App.vue
index 15ece4f..d8d4f83 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -366,11 +366,21 @@ export default {
       this.isWebSocketConnected = false
       this.isProcessingAlarm = false
     },
+    saveLo(e) {
+      let localStorageData = localStorage.getItem('ERROR')
+      let data = {}
+      if (localStorageData) {
+        data = JSON.parse(localStorageData)
+      }
+      data.push(e)
+      localStorage.setItem('ERROR', JSON.stringify(data))
+    },
     selectOffLineDevice() {
       Object.keys(this.isOnline).forEach(key => {
           // console.log(key, new Date().getTime() - this.isOnline[key])
         if (new Date().getTime() - this.isOnline[key] > (1000 * 60 * 60)) {
           console.log('error', key)
+          this.saveLo(key)
             this.$confirm(`设备${key}已离线`, '设备离线', {
               cancelButtonText: '关闭',
               showConfirmButton: false,