diff --git a/DownKyi.Core/DownKyi.Core.csproj b/DownKyi.Core/DownKyi.Core.csproj
index 76d1fe3..615b25e 100644
--- a/DownKyi.Core/DownKyi.Core.csproj
+++ b/DownKyi.Core/DownKyi.Core.csproj
@@ -291,6 +291,7 @@
     <Compile Include="Logging\LogManager.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Settings\Models\VideoContentSettings.cs" />
+    <Compile Include="Settings\OrderFormat.cs" />
     <Compile Include="Settings\ParseScope.cs" />
     <Compile Include="Settings\SettingsManager.Video.cs" />
     <Compile Include="Settings\SettingsManager.Basic.cs" />
diff --git a/DownKyi.Core/FileName/FileName.cs b/DownKyi.Core/FileName/FileName.cs
index 2e8684d..356a9e0 100644
--- a/DownKyi.Core/FileName/FileName.cs
+++ b/DownKyi.Core/FileName/FileName.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 
 namespace DownKyi.Core.FileName
@@ -6,7 +7,7 @@ namespace DownKyi.Core.FileName
     public class FileName
     {
         private readonly List<FileNamePart> nameParts;
-        private int order = -1;
+        private string order = "ORDER";
         private string section = "SECTION";
         private string mainTitle = "MAIN_TITLE";
         private string pageTitle = "PAGE_TITLE";
@@ -36,7 +37,15 @@ namespace DownKyi.Core.FileName
 
         public FileName SetOrder(int order)
         {
-            this.order = order;
+            this.order = order.ToString();
+            return this;
+        }
+
+        public FileName SetOrder(int order, int count)
+        {
+            int length = Math.Abs(count).ToString().Length;
+            this.order = order.ToString("D" + length);
+
             return this;
         }
 
@@ -127,14 +136,7 @@ namespace DownKyi.Core.FileName
                 switch (part)
                 {
                     case FileNamePart.ORDER:
-                        if (order != -1)
-                        {
-                            path += order;
-                        }
-                        else
-                        {
-                            path += "ORDER";
-                        }
+                        path += order;
                         break;
                     case FileNamePart.SECTION:
                         path += section;
diff --git a/DownKyi.Core/Settings/Models/VideoSettings.cs b/DownKyi.Core/Settings/Models/VideoSettings.cs
index c444a42..0cf431e 100644
--- a/DownKyi.Core/Settings/Models/VideoSettings.cs
+++ b/DownKyi.Core/Settings/Models/VideoSettings.cs
@@ -18,5 +18,6 @@ namespace DownKyi.Core.Settings.Models
         public VideoContentSettings VideoContent { get; set; } = null; // 下载内容
         public List<FileNamePart> FileNameParts { get; set; } = null; // 文件命名格式
         public string FileNamePartTimeFormat { get; set; } = null; // 文件命名中的时间格式
+        public OrderFormat OrderFormat { get; set; } = OrderFormat.NOT_SET; // 文件命名中的序号格式
     }
 }
diff --git a/DownKyi.Core/Settings/OrderFormat.cs b/DownKyi.Core/Settings/OrderFormat.cs
new file mode 100644
index 0000000..f496835
--- /dev/null
+++ b/DownKyi.Core/Settings/OrderFormat.cs
@@ -0,0 +1,9 @@
+namespace DownKyi.Core.Settings
+{
+    public enum OrderFormat
+    {
+        NOT_SET = 0,
+        NATURAL, // 自然数
+        LEADING_ZEROS, // 前导零填充
+    }
+}
diff --git a/DownKyi.Core/Settings/SettingsManager.Video.cs b/DownKyi.Core/Settings/SettingsManager.Video.cs
index 8caa05e..7a88cc4 100644
--- a/DownKyi.Core/Settings/SettingsManager.Video.cs
+++ b/DownKyi.Core/Settings/SettingsManager.Video.cs
@@ -51,6 +51,9 @@ namespace DownKyi.Core.Settings
         // 文件命名中的时间格式
         private readonly string fileNamePartTimeFormat = "yyyy-MM-dd";
 
+        // 文件命名中的序号格式
+        private readonly OrderFormat orderFormat = OrderFormat.NATURAL;
+
         /// <summary>
         /// 获取优先下载的视频编码
         /// </summary>
@@ -321,5 +324,32 @@ namespace DownKyi.Core.Settings
             return SetSettings();
         }
 
+        /// <summary>
+        /// 获取文件命名中的序号格式
+        /// </summary>
+        /// <returns></returns>
+        public OrderFormat GetOrderFormat()
+        {
+            appSettings = GetSettings();
+            if (appSettings.Video.OrderFormat == OrderFormat.NOT_SET)
+            {
+                // 第一次获取，先设置默认值
+                SetOrderFormat(orderFormat);
+                return orderFormat;
+            }
+            return appSettings.Video.OrderFormat;
+        }
+
+        /// <summary>
+        /// 设置文件命名中的序号格式
+        /// </summary>
+        /// <param name="orderFormat"></param>
+        /// <returns></returns>
+        public bool SetOrderFormat(OrderFormat orderFormat)
+        {
+            appSettings.Video.OrderFormat = orderFormat;
+            return SetSettings();
+        }
+
     }
 }
diff --git a/DownKyi/DownKyi.csproj b/DownKyi/DownKyi.csproj
index cc4e6b2..21760fc 100644
--- a/DownKyi/DownKyi.csproj
+++ b/DownKyi/DownKyi.csproj
@@ -113,6 +113,7 @@
     <Compile Include="Models\Downloaded.cs" />
     <Compile Include="Models\Downloading.cs" />
     <Compile Include="Models\DownloadStatus.cs" />
+    <Compile Include="Models\OrderFormatDisplay.cs" />
     <Compile Include="Services\Download\AddToDownloadService.cs" />
     <Compile Include="Services\Download\DownloadStorageService.cs" />
     <Compile Include="Services\SearchService.cs" />
diff --git a/DownKyi/Languages/Default.xaml b/DownKyi/Languages/Default.xaml
index e468434..91d20c1 100644
--- a/DownKyi/Languages/Default.xaml
+++ b/DownKyi/Languages/Default.xaml
@@ -221,6 +221,9 @@
     <system:String x:Key="DisplayUpName">UP主昵称</system:String>
     <system:String x:Key="Reset">恢复默认</system:String>
     <system:String x:Key="FileNameTimeFormat">时间格式：</system:String>
+    <system:String x:Key="OrderFormat">序号格式：</system:String>
+    <system:String x:Key="OrderFormatNatural">自然数</system:String>
+    <system:String x:Key="OrderFormatLeadingZeros">前导零填充</system:String>
 
     <system:String x:Key="SettingDanmaku">弹幕</system:String>
     <system:String x:Key="FilterType">按类型屏蔽</system:String>
diff --git a/DownKyi/Models/OrderFormatDisplay.cs b/DownKyi/Models/OrderFormatDisplay.cs
new file mode 100644
index 0000000..5e2a1a3
--- /dev/null
+++ b/DownKyi/Models/OrderFormatDisplay.cs
@@ -0,0 +1,10 @@
+using DownKyi.Core.Settings;
+
+namespace DownKyi.Models
+{
+    public class OrderFormatDisplay
+    {
+        public string Name { get; set; }
+        public OrderFormat OrderFormat { get; set; }
+    }
+}
diff --git a/DownKyi/Services/Download/AddToDownloadService.cs b/DownKyi/Services/Download/AddToDownloadService.cs
index 605ec55..c90519d 100644
--- a/DownKyi/Services/Download/AddToDownloadService.cs
+++ b/DownKyi/Services/Download/AddToDownloadService.cs
@@ -304,8 +304,7 @@ namespace DownKyi.Services.Download
 
                     // 文件路径
                     List<FileNamePart> fileNameParts = SettingsManager.GetInstance().GetFileNameParts();
-                    FileName fileName = FileName.Builder(fileNameParts)
-                        .SetOrder(page.Order)
+                    FileName fileName = FileName.Builder(fileNameParts)                        
                         .SetSection(Format.FormatFileName(sectionName))
                         .SetMainTitle(Format.FormatFileName(videoInfoView.Title))
                         .SetPageTitle(Format.FormatFileName(page.Name))
@@ -319,6 +318,20 @@ namespace DownKyi.Services.Download
                         .SetCid(page.Cid)
                         .SetUpMid(page.Owner.Mid)
                         .SetUpName(Format.FormatFileName(page.Owner.Name));
+
+                    // 序号设置
+                    OrderFormat orderFormat = SettingsManager.GetInstance().GetOrderFormat();
+                    switch (orderFormat)
+                    {
+                        case OrderFormat.NATURAL:
+                            fileName.SetOrder(page.Order);
+                            break;
+                        case OrderFormat.LEADING_ZEROS:
+                            fileName.SetOrder(page.Order, section.VideoPages.Count);
+                            break;
+                    }
+
+                    // 合成绝对路径
                     string filePath = Path.Combine(directory, fileName.RelativePath());
 
                     // 视频类别
diff --git a/DownKyi/ViewModels/Settings/ViewBasicViewModel.cs b/DownKyi/ViewModels/Settings/ViewBasicViewModel.cs
index 0d195af..eee40ca 100644
--- a/DownKyi/ViewModels/Settings/ViewBasicViewModel.cs
+++ b/DownKyi/ViewModels/Settings/ViewBasicViewModel.cs
@@ -84,10 +84,10 @@ namespace DownKyi.ViewModels.Settings
             // 解析范围
             ParseScopes = new List<ParseScopeDisplay>()
             {
-                new ParseScopeDisplay{ Name =DictionaryResource.GetString("ParseNone"),ParseScope=ParseScope.NONE},
-                new ParseScopeDisplay{ Name =DictionaryResource.GetString("ParseSelectedItem"),ParseScope=ParseScope.SELECTED_ITEM},
-                new ParseScopeDisplay{ Name =DictionaryResource.GetString("ParseCurrentSection"),ParseScope=ParseScope.CURRENT_SECTION},
-                new ParseScopeDisplay{ Name =DictionaryResource.GetString("ParseAll"),ParseScope=ParseScope.ALL}
+                new ParseScopeDisplay{ Name = DictionaryResource.GetString("ParseNone"), ParseScope = ParseScope.NONE },
+                new ParseScopeDisplay{ Name = DictionaryResource.GetString("ParseSelectedItem"), ParseScope = ParseScope.SELECTED_ITEM },
+                new ParseScopeDisplay{ Name = DictionaryResource.GetString("ParseCurrentSection"), ParseScope = ParseScope.CURRENT_SECTION },
+                new ParseScopeDisplay{ Name = DictionaryResource.GetString("ParseAll"), ParseScope = ParseScope.ALL }
             };
 
             #endregion
diff --git a/DownKyi/ViewModels/Settings/ViewVideoViewModel.cs b/DownKyi/ViewModels/Settings/ViewVideoViewModel.cs
index 5fffe18..a7ffd52 100644
--- a/DownKyi/ViewModels/Settings/ViewVideoViewModel.cs
+++ b/DownKyi/ViewModels/Settings/ViewVideoViewModel.cs
@@ -3,6 +3,7 @@ using DownKyi.Core.FileName;
 using DownKyi.Core.Settings;
 using DownKyi.Core.Settings.Models;
 using DownKyi.Events;
+using DownKyi.Models;
 using DownKyi.Utils;
 using Prism.Commands;
 using Prism.Events;
@@ -163,6 +164,20 @@ namespace DownKyi.ViewModels.Settings
             set => SetProperty(ref selectedFileNamePartTimeFormat, value);
         }
 
+        private List<OrderFormatDisplay> orderFormatList;
+        public List<OrderFormatDisplay> OrderFormatList
+        {
+            get => orderFormatList;
+            set => SetProperty(ref orderFormatList, value);
+        }
+
+        private OrderFormatDisplay orderFormatDisplay;
+        public OrderFormatDisplay OrderFormatDisplay
+        {
+            get => orderFormatDisplay;
+            set => SetProperty(ref orderFormatDisplay, value);
+        }
+
         #endregion
 
         public ViewVideoViewModel(IEventAggregator eventAggregator) : base(eventAggregator)
@@ -216,6 +231,13 @@ namespace DownKyi.ViewModels.Settings
                 "yyyy.MM.dd",
             };
 
+            // 文件命名中的序号格式
+            OrderFormatList = new List<OrderFormatDisplay>
+            {
+                new OrderFormatDisplay{ Name = DictionaryResource.GetString("OrderFormatNatural"), OrderFormat = OrderFormat.NATURAL },
+                new OrderFormatDisplay{ Name = DictionaryResource.GetString("OrderFormatLeadingZeros"), OrderFormat = OrderFormat.LEADING_ZEROS },
+            };
+
             #endregion
 
         }
@@ -283,6 +305,10 @@ namespace DownKyi.ViewModels.Settings
             // 文件命名中的时间格式
             SelectedFileNamePartTimeFormat = SettingsManager.GetInstance().GetFileNamePartTimeFormat();
 
+            // 文件命名中的序号格式
+            OrderFormat orderFormat = SettingsManager.GetInstance().GetOrderFormat();
+            OrderFormatDisplay = OrderFormatList.FirstOrDefault(t => { return t.OrderFormat == orderFormat; });
+
             isOnNavigatedTo = false;
         }
 
@@ -625,6 +651,22 @@ namespace DownKyi.ViewModels.Settings
             PublishTip(isSucceed);
         }
 
+        // 文件命名中的序号格式事件
+        private DelegateCommand<object> orderFormatCommand;
+        public DelegateCommand<object> OrderFormatCommand => orderFormatCommand ?? (orderFormatCommand = new DelegateCommand<object>(ExecuteOrderFormatCommandCommand));
+
+        /// <summary>
+        /// 文件命名中的序号格式事件
+        /// </summary>
+        /// <param name="parameter"></param>
+        private void ExecuteOrderFormatCommandCommand(object parameter)
+        {
+            if (!(parameter is OrderFormatDisplay orderFormatDisplay)) { return; }
+
+            bool isSucceed = SettingsManager.GetInstance().SetOrderFormat(orderFormatDisplay.OrderFormat);
+            PublishTip(isSucceed);
+        }
+
         #endregion
 
         /// <summary>
diff --git a/DownKyi/Views/Settings/ViewVideo.xaml b/DownKyi/Views/Settings/ViewVideo.xaml
index 050c6a2..4511b48 100644
--- a/DownKyi/Views/Settings/ViewVideo.xaml
+++ b/DownKyi/Views/Settings/ViewVideo.xaml
@@ -282,43 +282,78 @@
                         </ListBox.ItemContainerStyle>
                     </ListBox>
 
-                    <StackPanel
+                    <Grid
                         Grid.Row="2"
                         Grid.Column="1"
-                        HorizontalAlignment="Left"
-                        VerticalAlignment="Bottom"
-                        Orientation="Horizontal">
-                        <TextBlock
+                        Margin="0,20,0,0">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition />
+                            <ColumnDefinition />
+                            <ColumnDefinition />
+                        </Grid.ColumnDefinitions>
+
+                        <StackPanel
+                            Grid.Column="0"
+                            HorizontalAlignment="Left"
+                            VerticalAlignment="Bottom"
+                            Orientation="Horizontal">
+                            <TextBlock
+                                VerticalAlignment="Center"
+                                FontSize="12"
+                                Foreground="{DynamicResource BrushTextDark}"
+                                Text="{DynamicResource FileNameTimeFormat}" />
+                            <ComboBox
+                                Name="nameFileNamePartTimeFormat"
+                                Width="120"
+                                VerticalAlignment="Center"
+                                VerticalContentAlignment="Center"
+                                ItemsSource="{Binding FileNamePartTimeFormatList}"
+                                SelectedItem="{Binding SelectedFileNamePartTimeFormat}">
+                                <i:Interaction.Triggers>
+                                    <i:EventTrigger EventName="SelectionChanged">
+                                        <i:InvokeCommandAction Command="{Binding FileNamePartTimeFormatCommand}" CommandParameter="{Binding ElementName=nameFileNamePartTimeFormat, Path=SelectedItem}" />
+                                    </i:EventTrigger>
+                                </i:Interaction.Triggers>
+                            </ComboBox>
+                        </StackPanel>
+
+                        <StackPanel
+                            Grid.Column="1"
+                            HorizontalAlignment="Left"
+                            VerticalAlignment="Bottom"
+                            Orientation="Horizontal">
+                            <TextBlock
+                                VerticalAlignment="Center"
+                                FontSize="12"
+                                Foreground="{DynamicResource BrushTextDark}"
+                                Text="{DynamicResource OrderFormat}" />
+                            <ComboBox
+                                Name="nameOrderFormat"
+                                Width="120"
+                                VerticalAlignment="Center"
+                                VerticalContentAlignment="Center"
+                                DisplayMemberPath="Name"
+                                ItemsSource="{Binding OrderFormatList}"
+                                SelectedItem="{Binding OrderFormatDisplay}">
+                                <i:Interaction.Triggers>
+                                    <i:EventTrigger EventName="SelectionChanged">
+                                        <i:InvokeCommandAction Command="{Binding OrderFormatCommand}" CommandParameter="{Binding ElementName=nameOrderFormat, Path=SelectedItem}" />
+                                    </i:EventTrigger>
+                                </i:Interaction.Triggers>
+                            </ComboBox>
+                        </StackPanel>
+
+                        <Button
+                            Grid.Column="2"
+                            Width="75"
+                            HorizontalAlignment="Right"
                             VerticalAlignment="Center"
+                            Command="{Binding ResetCommand}"
+                            Content="{DynamicResource Reset}"
                             FontSize="12"
-                            Foreground="{DynamicResource BrushTextDark}"
-                            Text="{DynamicResource FileNameTimeFormat}" />
-                        <ComboBox
-                            Name="nameFileNamePartTimeFormat"
-                            Width="120"
-                            VerticalAlignment="Center"
-                            VerticalContentAlignment="Center"
-                            ItemsSource="{Binding FileNamePartTimeFormatList}"
-                            SelectedItem="{Binding SelectedFileNamePartTimeFormat}">
-                            <i:Interaction.Triggers>
-                                <i:EventTrigger EventName="SelectionChanged">
-                                    <i:InvokeCommandAction Command="{Binding FileNamePartTimeFormatCommand}" CommandParameter="{Binding ElementName=nameFileNamePartTimeFormat, Path=SelectedItem}" />
-                                </i:EventTrigger>
-                            </i:Interaction.Triggers>
-                        </ComboBox>
-                    </StackPanel>
+                            Style="{StaticResource BtnBorderStyle}" />
+                    </Grid>
 
-                    <Button
-                        Grid.Row="2"
-                        Grid.Column="1"
-                        Width="75"
-                        Margin="0,20,0,0"
-                        HorizontalAlignment="Right"
-                        VerticalAlignment="Center"
-                        Command="{Binding ResetCommand}"
-                        Content="{DynamicResource Reset}"
-                        FontSize="12"
-                        Style="{StaticResource BtnBorderStyle}" />
                 </Grid>
             </GroupBox>