diff --git a/lib/pages/setting/widgets/model.dart b/lib/pages/setting/widgets/model.dart
index 15c6ac86..3b88b6e0 100644
--- a/lib/pages/setting/widgets/model.dart
+++ b/lib/pages/setting/widgets/model.dart
@@ -934,7 +934,7 @@ List<SettingsModel> get videoSettings => [
         settingsType: SettingsType.sw1tch,
         title: '扩大缓冲区',
         leading: Icon(Icons.storage_outlined),
-        subtitle: '默认缓冲区为视频3MB/直播16MB，开启后为32MB/64MB，加载时间变长',
+        subtitle: '默认缓冲区为视频4MB/直播16MB，开启后为32MB/64MB，加载时间变长',
         setKey: SettingBoxKey.expandBuffer,
         defaultVal: false,
       ),
diff --git a/lib/plugin/pl_player/controller.dart b/lib/plugin/pl_player/controller.dart
index 8db22eb0..527ff0f4 100644
--- a/lib/plugin/pl_player/controller.dart
+++ b/lib/plugin/pl_player/controller.dart
@@ -553,11 +553,11 @@ class PlPlayerController {
     int bufferSize =
         setting.get(SettingBoxKey.expandBuffer, defaultValue: false)
             ? (videoType.value == 'live' ? 64 * 1024 * 1024 : 32 * 1024 * 1024)
-            : (videoType.value == 'live' ? 16 * 1024 * 1024 : 3 * 1024 * 1024);
+            : (videoType.value == 'live' ? 16 * 1024 * 1024 : 4 * 1024 * 1024);
     Player player = _videoPlayerController ??
         Player(
           configuration: PlayerConfiguration(
-            // 默认缓冲 3M 大小
+            // 默认缓冲 4M 大小
             bufferSize: bufferSize,
           ),
         );