diff --git a/lib/services/audio_service.dart b/lib/services/audio_service.dart
index a8774da..6ad9b41 100644
--- a/lib/services/audio_service.dart
+++ b/lib/services/audio_service.dart
@@ -8,6 +8,7 @@ import 'package:media_kit/media_kit.dart' as media_kit;
 import 'package:path_provider/path_provider.dart';
 import 'playback_service.dart';
 import 'network_watcher.dart';
+import 'prefetch_service.dart';
 import '../metadata/metadata_service.dart';
 import '../database/song_database.dart';
 import '../utils/artwork_helper.dart';
@@ -107,6 +108,7 @@ class AudioService extends ChangeNotifier {
   /// 也不发 buffering / error（实测公网链路可静默卡 75s+）。
   DateTime? _trackStartAt;
   DateTime? _playReadyAt;
+  int _prefetchedGeneration = -1;
   bool _firstAudioReported = false;
 
   /// 最近一次播放失败的原因，供 UI 提示；成功播放后自动清空。
@@ -418,6 +420,39 @@ class AudioService extends ChangeNotifier {
     }();
   }
 
+  /// 播到 60% 时预热下一首（HEAD + Range 0-0，不下载正文）。
+  ///
+  /// 日志实测起播延迟 2~3s 都在"等首批数据"，提前完成 DNS/TLS/反代握手
+  /// 可以把这段时间压掉一部分；失败完全静默，不影响当前播放。
+  void _maybePrefetchNext(Duration position) {
+    final duration = durationNotifier.value;
+    if (duration.inSeconds < 60) return;
+    if (position.inMilliseconds < duration.inMilliseconds * 0.6) return;
+    if (_prefetchedGeneration == _playbackGeneration) return;
+
+    final next = _peekNextSong();
+    final url = next?.url;
+    if (url == null || url.isEmpty) return;
+
+    _prefetchedGeneration = _playbackGeneration;
+    debugPrint('🔥 [AudioService] 预热下一首：${next!.title}');
+    PrefetchService().warm(url);
+  }
+
+  /// 只推算下一首，不改变队列/索引（next() 会改）。
+  Song? _peekNextSong() {
+    if (_queue.isEmpty) return null;
+
+    if (_playMode == PlayMode.shuffle) {
+      if (_shuffledIndices.isEmpty) return null;
+      final nextIdx = (_shuffledIndex + 1) % _shuffledIndices.length;
+      return _queue[_shuffledIndices[nextIdx]];
+    }
+
+    final nextIdx = (_currentIndex + 1) % _queue.length;
+    return _queue[nextIdx];
+  }
+
   /// 进度看门狗：播放中进度 30s 不动、且近期出现过缓冲，判定为卡死。
   ///
   /// 为什么不能只看 `buffering`：弱网下它会在 true/false 之间反复抖动，
@@ -861,6 +896,7 @@ class AudioService extends ChangeNotifier {
             _playReadyAt = null;
           }
         }
+        _maybePrefetchNext(position);
         positionNotifier.value = position;
       }),
     );
diff --git a/lib/services/prefetch_service.dart b/lib/services/prefetch_service.dart
new file mode 100644
index 0000000..d0bfe8b
--- /dev/null
+++ b/lib/services/prefetch_service.dart
@@ -0,0 +1,68 @@
+// lib/services/prefetch_service.dart
+import 'package:dio/dio.dart';
+import 'package:flutter/foundation.dart';
+
+import 'webdav_service.dart';
+
+/// 下一首预热。
+///
+/// 目的：在用户真正切歌之前，提前完成 DNS 解析、TLS 握手、反代/CDN 的首包，
+/// 让 mpv 起播时少等一会儿。
+///
+/// 只发 HEAD + `Range: bytes=0-0`，不下载正文，带宽开销可以忽略；
+/// 失败也完全静默，不影响当前播放。
+class PrefetchService {
+  static final PrefetchService _instance = PrefetchService._internal();
+  factory PrefetchService() => _instance;
+  PrefetchService._internal();
+
+  final Dio _dio = Dio();
+
+  String? _lastUrl;
+  bool _busy = false;
+
+  Future<void> warm(String url) async {
+    if (url.isEmpty) return;
+    if (_busy) return;
+    if (_lastUrl == url) return;
+
+    _busy = true;
+    _lastUrl = url;
+
+    final sw = Stopwatch()..start();
+    try {
+      final headers = await WebDAVService.instance.getAuthHeaders();
+      if (headers.isEmpty) return;
+
+      final response = await _dio.head(
+        url,
+        options: Options(
+          headers: {
+            ...headers,
+            'Range': 'bytes=0-0',
+          },
+          receiveTimeout: const Duration(seconds: 8),
+          sendTimeout: const Duration(seconds: 5),
+          // HEAD 返回 4xx/5xx 也不抛异常，交给日志记录
+          validateStatus: (_) => true,
+        ),
+      );
+
+      debugPrint('🔥 [Prefetch] 预热完成 ${sw.elapsedMilliseconds}ms，'
+          'status=${response.statusCode}');
+    } catch (e) {
+      debugPrint('⚠️ [Prefetch] 预热失败（忽略）: $e');
+    } finally {
+      _busy = false;
+      // 允许同一首歌在下一轮重新预热（比如重播）
+      if (_lastUrl == url) {
+        // 保留 _lastUrl 做去重，下一次换歌时会被覆盖
+      }
+    }
+  }
+
+  /// 切歌/停止时清掉去重状态
+  void reset() {
+    _lastUrl = null;
+  }
+}