diff --git a/frontend/mobile-app/assets/images/splash_static/splash_1.jpg b/frontend/mobile-app/assets/images/splash_static/splash_1.jpg
new file mode 100644
index 00000000..529d4f12
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diff --git a/frontend/mobile-app/assets/images/splash_static/splash_2.jpg b/frontend/mobile-app/assets/images/splash_static/splash_2.jpg
new file mode 100644
index 00000000..1c635e47
Binary files /dev/null and b/frontend/mobile-app/assets/images/splash_static/splash_2.jpg differ
diff --git a/frontend/mobile-app/assets/images/splash_static/splash_3.jpg b/frontend/mobile-app/assets/images/splash_static/splash_3.jpg
new file mode 100644
index 00000000..71635354
Binary files /dev/null and b/frontend/mobile-app/assets/images/splash_static/splash_3.jpg differ
diff --git a/frontend/mobile-app/lib/features/auth/presentation/pages/splash_page.dart b/frontend/mobile-app/lib/features/auth/presentation/pages/splash_page.dart
index 79266853..4d183456 100644
--- a/frontend/mobile-app/lib/features/auth/presentation/pages/splash_page.dart
+++ b/frontend/mobile-app/lib/features/auth/presentation/pages/splash_page.dart
@@ -1,3 +1,4 @@
+import 'dart:math';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
@@ -10,7 +11,7 @@ import '../../../../routes/app_router.dart';
 import '../providers/auth_provider.dart';
 
 /// 开屏页面 - 应用启动时显示的第一个页面
-/// 播放帧动画，动画结束后检查用户认证状态并跳转
+/// 随机显示一张静态图片，3秒后自动跳转
 class SplashPage extends ConsumerStatefulWidget {
   const SplashPage({super.key});
 
@@ -19,6 +20,22 @@ class SplashPage extends ConsumerStatefulWidget {
 }
 
 class _SplashPageState extends ConsumerState<SplashPage> {
+  // ========== 静态图片模式配置 ==========
+
+  /// 是否使用静态图片模式（false = 使用帧动画）
+  static const bool _useStaticImage = true;
+
+  /// 静态图片显示时长（秒）
+  static const int _staticDisplaySeconds = 3;
+
+  /// 静态图片数量
+  static const int _staticImageCount = 3;
+
+  /// 当前显示的静态图片索引 (1-based)
+  late int _staticImageIndex;
+
+  // ========== 帧动画模式配置（保留备用） ==========
+
   /// 帧动画总帧数
   static const int _totalFrames = 36;
 
@@ -28,25 +45,55 @@ class _SplashPageState extends ConsumerState<SplashPage> {
   /// 当前显示的帧索引 (0-based)
   int _currentFrameIndex = 0;
 
+  /// 预加载的图片缓存（帧动画用）
+  final List<ImageProvider> _frameProviders = [];
+
+  // ========== 通用状态 ==========
+
   /// 是否显示跳过按钮
   bool _showSkipButton = false;
 
   /// 是否已经开始跳转（防止重复跳转）
   bool _isNavigating = false;
 
-  /// 帧动画是否正在播放
+  /// 动画/计时器是否正在运行
   bool _isPlaying = true;
 
-  /// 预加载的图片缓存
-  final List<ImageProvider> _frameProviders = [];
-
   @override
   void initState() {
     super.initState();
-    _initializeFrames();
+
+    if (_useStaticImage) {
+      _initializeStaticImage();
+    } else {
+      _initializeFrames();
+    }
   }
 
-  /// 初始化帧动画
+  /// 初始化静态图片模式
+  void _initializeStaticImage() {
+    // 随机选择一张图片 (1 到 _staticImageCount)
+    _staticImageIndex = Random().nextInt(_staticImageCount) + 1;
+    debugPrint('[SplashPage] 静态图片模式：显示 splash_$_staticImageIndex.jpg');
+
+    // 3秒后自动跳转
+    Future.delayed(Duration(seconds: _staticDisplaySeconds), () {
+      if (mounted && _isPlaying) {
+        _navigateToNextPage();
+      }
+    });
+
+    // 1秒后显示跳过按钮
+    Future.delayed(const Duration(seconds: 1), () {
+      if (mounted) {
+        setState(() {
+          _showSkipButton = true;
+        });
+      }
+    });
+  }
+
+  /// 初始化帧动画（保留备用）
   void _initializeFrames() {
     // 创建所有帧的 ImageProvider（不会立即加载，只是创建引用）
     for (int i = 1; i <= _totalFrames; i++) {
@@ -71,11 +118,20 @@ class _SplashPageState extends ConsumerState<SplashPage> {
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
-    // 预加载前几帧到内存，确保播放流畅
-    _precacheInitialFrames();
+
+    if (_useStaticImage) {
+      // 预加载静态图片
+      precacheImage(
+        AssetImage('assets/images/splash_static/splash_$_staticImageIndex.jpg'),
+        context,
+      );
+    } else {
+      // 预加载前几帧到内存，确保播放流畅
+      _precacheInitialFrames();
+    }
   }
 
-  /// 预加载前几帧
+  /// 预加载前几帧（帧动画用）
   void _precacheInitialFrames() {
     // 预加载前5帧，确保启动时不卡顿
     final framesToPrecache = _totalFrames < 5 ? _totalFrames : 5;
@@ -84,7 +140,7 @@ class _SplashPageState extends ConsumerState<SplashPage> {
     }
   }
 
-  /// 播放帧动画
+  /// 播放帧动画（保留备用）
   Future<void> _playAnimation() async {
     final frameDuration = Duration(milliseconds: 1000 ~/ _frameRate);
 
@@ -110,7 +166,7 @@ class _SplashPageState extends ConsumerState<SplashPage> {
     }
   }
 
-  /// 跳过动画
+  /// 跳过动画/等待
   void _skipAnimation() {
     _isPlaying = false;
     _navigateToNextPage();
@@ -222,8 +278,8 @@ class _SplashPageState extends ConsumerState<SplashPage> {
       body: Stack(
         fit: StackFit.expand,
         children: [
-          // 帧动画（全屏覆盖）
-          _buildFrameAnimation(),
+          // 启动图片/动画（全屏覆盖）
+          _useStaticImage ? _buildStaticImage() : _buildFrameAnimation(),
 
           // 跳过按钮
           if (_showSkipButton)
@@ -237,7 +293,17 @@ class _SplashPageState extends ConsumerState<SplashPage> {
     );
   }
 
-  /// 构建帧动画视图
+  /// 构建静态图片视图
+  Widget _buildStaticImage() {
+    return SizedBox.expand(
+      child: Image.asset(
+        'assets/images/splash_static/splash_$_staticImageIndex.jpg',
+        fit: BoxFit.cover,
+      ),
+    );
+  }
+
+  /// 构建帧动画视图（保留备用）
   Widget _buildFrameAnimation() {
     return SizedBox.expand(
       child: Image(
diff --git a/frontend/mobile-app/pubspec.yaml b/frontend/mobile-app/pubspec.yaml
index c8347aef..f5ad615f 100644
--- a/frontend/mobile-app/pubspec.yaml
+++ b/frontend/mobile-app/pubspec.yaml
@@ -109,6 +109,7 @@ flutter:
     - assets/images/avatars/
     - assets/images/illustrations/
     - assets/images/splash_frames/
+    - assets/images/splash_static/
     - assets/icons/
     - assets/icons/nav/
     - assets/icons/tokens/