diff --git a/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_logic.dart b/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_logic.dart
index 6b45b55c..152e88c0 100644
--- a/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_logic.dart
+++ b/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_logic.dart
@@ -28,6 +28,11 @@ class ThirdPartyPlatformLogic extends BaseGetXController {
   void onReady() async {
     super.onReady();
     await getActivateInfo();
+    // 恢复之前保存的选中状态
+    final savedIndex = await state.getSavedSelectedPlatformIndex();
+    if (savedIndex != null && savedIndex < state.platFormSet.length) {
+      state.selectPlatFormIndex.value = savedIndex;
+    }
     _initReplySubscription();
     await getServerDatetime();
     showEasyLoading();
@@ -209,6 +214,8 @@ class ThirdPartyPlatformLogic extends BaseGetXController {
   void savePlatFormSetting() {
     if (state.selectPlatFormIndex.value == 1 || state.selectPlatFormIndex.value == 0) {
       if (state.registerKey.isNotEmpty) {
+        // 持久化保存选项
+        state.saveSelectedPlatformIndex(state.selectPlatFormIndex.value);
         _requestAuthorizationCode();
       }
     } else {
diff --git a/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_state.dart b/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_state.dart
index c26002c4..da3269e0 100644
--- a/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_state.dart
+++ b/lib/main/lockDetail/lockSet/thirdPartyPlatform/third_party_platform_state.dart
@@ -2,6 +2,7 @@ import 'dart:ui';
 
 import 'package:get/get.dart';
 import 'package:get/get_rx/get_rx.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import 'package:star_lock/main/lockDetail/lockDetail/ActivateInfoResponse.dart';
 import 'package:star_lock/main/lockDetail/lockSet/lockSet/lockSetInfo_entity.dart';
 import 'package:star_lock/translations/app_dept.dart';
@@ -32,4 +33,16 @@ class ThirdPartyPlatformState {
   Map lockInfo = {};
 
   int serverTime = 0; // 服务器时间即UTC+0时间
+
+  // 存储选中的平台索引
+  static const String _SELECTED_PLATFORM_INDEX_KEY = 'selected_platform_index';
+  Future<void> saveSelectedPlatformIndex(int index) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setInt(_SELECTED_PLATFORM_INDEX_KEY, index);
+  }
+  // 从本地存储读取选中的平台索引
+  Future<int?> getSavedSelectedPlatformIndex() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getInt(_SELECTED_PLATFORM_INDEX_KEY);
+  }
 }