diff --git a/miniprogram/pages/connectedDevice/connectedDevice.ts b/miniprogram/pages/connectedDevice/connectedDevice.ts
index 115c968..f1cf8b4 100644
--- a/miniprogram/pages/connectedDevice/connectedDevice.ts
+++ b/miniprogram/pages/connectedDevice/connectedDevice.ts
@@ -39,6 +39,8 @@ let connectCleanup: {
 /** 一次性防重入标记 */
 let modalLocked = false
 let autoConnectTried = false
+/** 进入页面时是否已连接（返回时恢复被扫描打断的连接） */
+let enteredConnected = false
 
 Page({
     data: {
@@ -46,6 +48,10 @@ Page({
         deviceList: [] as DeviceItem[],
     },
 
+    onLoad() {
+        enteredConnected = leFuService.isConnected
+    },
+
     onShow() {
         // 从其他页面返回时同步连接状态
         if (leFuService.isConnected) {
@@ -67,6 +73,10 @@ Page({
         leFuService.stopScan()
         this._clearSubscriptions()
         this._clearConnectCleanup()
+        // 进入前已连接、扫描打断连接后返回：恢复原连接
+        if (enteredConnected) {
+            leFuService.autoConnect()
+        }
     },
 
     /** 点击「开始 / 重新搜索」 */