diff --git a/lib/pages/setting/extra_setting.dart b/lib/pages/setting/extra_setting.dart
index 9b3766085..ddb97436e 100644
--- a/lib/pages/setting/extra_setting.dart
+++ b/lib/pages/setting/extra_setting.dart
@@ -179,8 +179,7 @@ class _ExtraSettingState extends State<ExtraSetting> {
                     content: TextFormField(
                       autofocus: true,
                       initialValue: dynamicPeriod.toString(),
-                      keyboardType:
-                          TextInputType.numberWithOptions(decimal: true),
+                      keyboardType: TextInputType.numberWithOptions(),
                       onChanged: (value) {
                         dynamicPeriod = int.tryParse(value) ?? 5;
                       },
@@ -280,6 +279,63 @@ class _ExtraSettingState extends State<ExtraSetting> {
             setKey: SettingBoxKey.horizontalMemberPage,
             defaultVal: false,
           ),
+          ListTile(
+            title: Text('评论折叠行数', style: titleStyle),
+            subtitle: Text('0行为不折叠', style: subTitleStyle),
+            leading: const Icon(Icons.compress),
+            trailing: Text(
+              '${GlobalData().replyLengthLimit.toString()}行',
+              style: Theme.of(context).textTheme.titleSmall,
+            ),
+            onTap: () {
+              String replyLengthLimit =
+                  GlobalData().replyLengthLimit.toString();
+              showDialog(
+                context: context,
+                builder: (context) {
+                  return AlertDialog(
+                    title: Text('评论折叠行数', style: TextStyle(fontSize: 18)),
+                    content: TextFormField(
+                      autofocus: true,
+                      initialValue: replyLengthLimit,
+                      keyboardType: TextInputType.numberWithOptions(),
+                      onChanged: (value) {
+                        replyLengthLimit = value;
+                      },
+                      inputFormatters: [
+                        FilteringTextInputFormatter.allow(RegExp(r'\d+')),
+                      ],
+                      decoration: InputDecoration(suffixText: '行'),
+                    ),
+                    actions: [
+                      TextButton(
+                        onPressed: Get.back,
+                        child: Text(
+                          '取消',
+                          style: TextStyle(
+                            color: Theme.of(context).colorScheme.outline,
+                          ),
+                        ),
+                      ),
+                      TextButton(
+                        onPressed: () async {
+                          Get.back();
+                          GlobalData().replyLengthLimit =
+                              int.tryParse(replyLengthLimit) ?? 6;
+                          await setting.put(
+                            SettingBoxKey.replyLengthLimit,
+                            GlobalData().replyLengthLimit,
+                          );
+                          setState(() {});
+                        },
+                        child: Text('确定'),
+                      )
+                    ],
+                  );
+                },
+              );
+            },
+          ),
           Obx(
             () => ListTile(
               enableFeedback: true,
diff --git a/lib/pages/video/detail/reply/widgets/reply_item.dart b/lib/pages/video/detail/reply/widgets/reply_item.dart
index 938f050da..0acc3259b 100644
--- a/lib/pages/video/detail/reply/widgets/reply_item.dart
+++ b/lib/pages/video/detail/reply/widgets/reply_item.dart
@@ -3,6 +3,7 @@ import 'dart:math';
 import 'package:PiliPalaX/common/widgets/imageview.dart';
 import 'package:PiliPalaX/http/video.dart';
 import 'package:PiliPalaX/utils/extension.dart';
+import 'package:PiliPalaX/utils/global_data.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -256,8 +257,11 @@ class ReplyItem extends StatelessWidget {
               String text = replyItem?.content?.message ?? '';
               var textPainter = TextPainter(
                 text: TextSpan(text: text),
-                maxLines:
-                    replyItem!.content!.isText! && replyLevel == '1' ? 6 : 999,
+                maxLines: replyItem!.content!.isText! &&
+                        replyLevel == '1' &&
+                        GlobalData().replyLengthLimit != 0
+                    ? GlobalData().replyLengthLimit
+                    : null,
                 textDirection: Directionality.of(context),
               )..layout(maxWidth: constraints.maxWidth);
               bool didExceedMaxLines = textPainter.didExceedMaxLines;
diff --git a/lib/pages/video/detail/reply/widgets/reply_item_grpc.dart b/lib/pages/video/detail/reply/widgets/reply_item_grpc.dart
index ebfda2408..1d73fdf28 100644
--- a/lib/pages/video/detail/reply/widgets/reply_item_grpc.dart
+++ b/lib/pages/video/detail/reply/widgets/reply_item_grpc.dart
@@ -6,6 +6,7 @@ import 'package:PiliPalaX/grpc/app/main/community/reply/v1/reply.pb.dart';
 import 'package:PiliPalaX/http/video.dart';
 import 'package:PiliPalaX/pages/video/detail/reply/widgets/zan_grpc.dart';
 import 'package:PiliPalaX/utils/extension.dart';
+import 'package:PiliPalaX/utils/global_data.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -268,7 +269,10 @@ class ReplyItemGrpc extends StatelessWidget {
               );
               var textPainter = TextPainter(
                 text: TextSpan(text: text, style: style),
-                maxLines: replyLevel == '1' ? 6 : null,
+                maxLines:
+                    replyLevel == '1' && GlobalData().replyLengthLimit != 0
+                        ? GlobalData().replyLengthLimit
+                        : null,
                 textDirection: Directionality.of(context),
               )..layout(maxWidth: constraints.maxWidth);
               bool didExceedMaxLines = textPainter.didExceedMaxLines;
diff --git a/lib/utils/global_data.dart b/lib/utils/global_data.dart
index 42f8535b1..43791fda3 100644
--- a/lib/utils/global_data.dart
+++ b/lib/utils/global_data.dart
@@ -1,10 +1,10 @@
 class GlobalData {
   int imgQuality = 10;
 
-  // int themeMode = 2;
-
   bool grpcReply = true;
 
+  int replyLengthLimit = 6;
+
   // 私有构造函数
   GlobalData._();
 
diff --git a/lib/utils/storage.dart b/lib/utils/storage.dart
index 12a362c38..8e90e0592 100644
--- a/lib/utils/storage.dart
+++ b/lib/utils/storage.dart
@@ -136,6 +136,12 @@ class GStorage {
   static bool get horizontalMemberPage =>
       setting.get(SettingBoxKey.horizontalMemberPage, defaultValue: false);
 
+  static int get replyLengthLimit =>
+      setting.get(SettingBoxKey.replyLengthLimit, defaultValue: 6);
+
+  static int get defaultPicQa =>
+      setting.get(SettingBoxKey.defaultPicQa, defaultValue: 10);
+
   static List<double> get dynamicDetailRatio =>
       setting.get(SettingBoxKey.dynamicDetailRatio, defaultValue: [60.0, 40.0]);
 
@@ -203,15 +209,10 @@ class GStorage {
     // 视频设置
     video = await Hive.openBox('video');
     // 设置全局变量
-    GlobalData().imgQuality = setting.get(
-      SettingBoxKey.defaultPicQa,
-      defaultValue: 10,
-    );
-    // GlobalData().themeMode = setting.get(
-    //   SettingBoxKey.themeMode,
-    //   defaultValue: ThemeType.system.code,
-    // );
-    GlobalData().grpcReply = grpcReply;
+    GlobalData()
+      ..imgQuality = defaultPicQa
+      ..grpcReply = grpcReply
+      ..replyLengthLimit = replyLengthLimit;
   }
 
   static Future<String> exportAllSettings() async {
@@ -341,6 +342,7 @@ class SettingBoxKey {
       exapndIntroPanelH = 'exapndIntroPanelH',
       horizontalSeasonPanel = 'horizontalSeasonPanel',
       horizontalMemberPage = 'horizontalMemberPage',
+      replyLengthLimit = 'replyLengthLimit',
 
       // Sponsor Block
       enableSponsorBlock = 'enableSponsorBlock',