diff --git a/DownKyi/App.axaml.cs b/DownKyi/App.axaml.cs
index 2051858..9e16bd9 100644
--- a/DownKyi/App.axaml.cs
+++ b/DownKyi/App.axaml.cs
@@ -122,6 +122,7 @@ public partial class App : PrismApplication
         containerRegistry.RegisterDialog<ViewDownloadSetter>(ViewDownloadSetterViewModel.Tag);
         containerRegistry.RegisterDialog<ViewParsingSelector>(ViewParsingSelectorViewModel.Tag);
         containerRegistry.RegisterDialog<ViewAlreadyDownloadedDialog>(ViewAlreadyDownloadedDialogViewModel.Tag);
+        containerRegistry.RegisterDialog<NewVersionAvailableDialog>(NewVersionAvailableDialogViewModel.Tag);
     }
 
 
diff --git a/DownKyi/DownKyi.csproj b/DownKyi/DownKyi.csproj
index ee8c3a2..c70292f 100644
--- a/DownKyi/DownKyi.csproj
+++ b/DownKyi/DownKyi.csproj
@@ -33,4 +33,11 @@
     <ItemGroup>
       <ProjectReference Include="..\DownKyi.Core\DownKyi.Core.csproj" />
     </ItemGroup>
+
+
+    <ItemGroup>
+      <Compile Update="Views\Dialogs\NewVersionAvailableDialog.axaml.cs">
+        <DependentUpon>NewVersionAvailableDialog.axaml</DependentUpon>
+      </Compile>
+    </ItemGroup>
 </Project>
diff --git a/DownKyi/Languanges/Default.axaml b/DownKyi/Languanges/Default.axaml
index 486c47c..8c26374 100644
--- a/DownKyi/Languanges/Default.axaml
+++ b/DownKyi/Languanges/Default.axaml
@@ -312,6 +312,8 @@
     <system:String x:Key="Warning">警告</system:String>
     <system:String x:Key="Error">错误</system:String>
     <system:String x:Key="Allow">确定</system:String>
+    <system:String x:Key="ActionUpdate">前往下载</system:String>
+    <system:String x:Key="NewVersionTitle">更新提示</system:String>
     <system:String x:Key="Cancel">取消</system:String>
     <system:String x:Key="ConfirmReboot">此项需重启生效，您确定要重新启动吗？</system:String>
     <system:String x:Key="ConfirmDelete">您确定要删除吗？</system:String>
diff --git a/DownKyi/Services/VersionCheckerService.cs b/DownKyi/Services/VersionCheckerService.cs
new file mode 100644
index 0000000..68237d2
--- /dev/null
+++ b/DownKyi/Services/VersionCheckerService.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace DownKyi.Services
+{
+    public class VersionCheckerService
+    {
+        private const string gh_releases = "https://api.github.com/repos/yaobiao131/downkyicore/releases/latest";
+        public async Task<(Version, string)> GetLatestVersion()
+        {
+            string json;
+            try
+            {
+                var hc = new HttpClient();
+                hc.DefaultRequestHeaders.Add("User-Agent", "downkyicore");
+
+                json =await hc.GetStringAsync(new Uri(gh_releases));
+                    
+            }
+            catch (Exception e) when (e is HttpRequestException or TimeoutException)
+            {
+                return (null, null);
+            }
+            try
+            {
+                using JsonDocument doc = JsonDocument.Parse(json);
+                var versionString = doc.RootElement.GetProperty("tag_name").GetString();
+                var updateNotes = doc.RootElement.GetProperty("body").GetString();
+                var version = Version.Parse(versionString.TrimStart('v'));
+                return (version, updateNotes);
+            }
+            catch (Exception e)
+            {
+                return (null, null);
+            }
+        }
+    }
+}
diff --git a/DownKyi/Utils/MarkdownUtil.cs b/DownKyi/Utils/MarkdownUtil.cs
new file mode 100644
index 0000000..e682738
--- /dev/null
+++ b/DownKyi/Utils/MarkdownUtil.cs
@@ -0,0 +1,54 @@
+using Avalonia.Controls.Documents;
+using Avalonia.Media;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DownKyi.Utils
+{
+    public class MarkdownUtil
+    {
+        public static List<Run> ConvertMarkdownToRuns(string markdownText)
+        {
+            var runs = new List<Run>();
+            var lines = markdownText.Split('\n');
+            foreach (var line in lines)
+            {
+                if (line.Trim().StartsWith("<!--") && line.Trim().EndsWith("-->"))
+                {
+                    continue;
+                }
+                if (line.StartsWith("# "))
+                {
+                    runs.Add(new Run(line.Substring(2)) { FontSize = 18, FontWeight = FontWeight.Bold }); 
+                }
+                else if (line.StartsWith("## "))
+                {
+                    runs.Add(new Run(line.Substring(3)) { FontSize = 19, FontWeight = FontWeight.Bold }); // 二级标题
+                }
+                else if (line.StartsWith("### "))
+                {
+                    runs.Add(new Run(line.Substring(4)) { FontSize = 15, FontWeight = FontWeight.Bold }); // 三级标题
+                }
+                else
+                {
+                    var parts = line.Split(new[] { "**" }, StringSplitOptions.None);
+                    for (int i = 0; i < parts.Length; i++)
+                    {
+                        if (i % 2 == 1)
+                        {
+                            runs.Add(new Run(parts[i]) { FontWeight = FontWeight.Bold });
+                        }
+                        else
+                        {
+                            runs.Add(new Run(parts[i]) { FontSize = 13});
+                        }
+                    }
+                }
+            }
+            return runs;
+        }
+    }
+}
diff --git a/DownKyi/Utils/PlatformHelper.cs b/DownKyi/Utils/PlatformHelper.cs
index 823118e..99f9e26 100644
--- a/DownKyi/Utils/PlatformHelper.cs
+++ b/DownKyi/Utils/PlatformHelper.cs
@@ -40,17 +40,17 @@ public static class PlatformHelper
         {
             if (OperatingSystem.IsWindows())
             {
-                Process.Start(filename);
+                Process.Start(new ProcessStartInfo(filename) { UseShellExecute = true });
             }
 
             if (OperatingSystem.IsMacOS())
             {
-                Process.Start("open", $"\"{filename}\"");
+                Process.Start(new ProcessStartInfo("open", $"\"{filename}\""));
             }
 
             if (OperatingSystem.IsLinux())
             {
-                Process.Start("xdg-open", $"\"{filename}\"");
+                Process.Start(new ProcessStartInfo("xdg-open", $"\"{filename}\""));
             }
         }
         catch (Exception e)
diff --git a/DownKyi/ViewModels/Dialogs/NewVersionAvailableDialogViewModel.cs b/DownKyi/ViewModels/Dialogs/NewVersionAvailableDialogViewModel.cs
new file mode 100644
index 0000000..820b7f1
--- /dev/null
+++ b/DownKyi/ViewModels/Dialogs/NewVersionAvailableDialogViewModel.cs
@@ -0,0 +1,41 @@
+using Avalonia.Controls.Documents;
+using DownKyi.Models;
+using DownKyi.Utils;
+using Prism.Commands;
+using Prism.Services.Dialogs;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace DownKyi.ViewModels.Dialogs
+{
+    public class NewVersionAvailableDialogViewModel :  BaseDialogViewModel
+    {
+        public const string Tag = "NewVersionAvailable";
+
+        private DelegateCommand? _allowCommand;
+        public DelegateCommand AllowCommand => _allowCommand ??= new DelegateCommand(ExecuteAllowCommand);
+
+        /// <summary>
+        /// 确认事件
+        /// </summary>
+        private void ExecuteAllowCommand()
+        {
+            ButtonResult result = ButtonResult.OK;
+            RaiseRequestClose(new DialogResult(result));
+        }
+
+        public ObservableCollection<Run> Messages { get; set; } = new();
+      
+
+        public override void OnDialogOpened(IDialogParameters parameters)
+        {
+            Messages.AddRange(MarkdownUtil.ConvertMarkdownToRuns(parameters.GetValue<string>("body")));
+        }
+    }
+}
diff --git a/DownKyi/ViewModels/Settings/ViewAboutViewModel.cs b/DownKyi/ViewModels/Settings/ViewAboutViewModel.cs
index 6a7180e..3db844b 100644
--- a/DownKyi/ViewModels/Settings/ViewAboutViewModel.cs
+++ b/DownKyi/ViewModels/Settings/ViewAboutViewModel.cs
@@ -1,11 +1,17 @@
 using DownKyi.Core.Settings;
 using DownKyi.Events;
+using DownKyi.Images;
 using DownKyi.Models;
 using DownKyi.PrismExtension.Dialog;
+using DownKyi.Services;
 using DownKyi.Utils;
+using DownKyi.ViewModels.Dialogs;
 using Prism.Commands;
 using Prism.Events;
 using Prism.Regions;
+using Prism.Services.Dialogs;
+using System;
+
 
 namespace DownKyi.ViewModels.Settings;
 
@@ -51,7 +57,7 @@ public class ViewAboutViewModel : ViewModelBase
 
     #endregion
 
-    public ViewAboutViewModel(IEventAggregator eventAggregator, IDialogService dialogService) : base(eventAggregator,
+    public ViewAboutViewModel(IEventAggregator eventAggregator, PrismExtension.Dialog.IDialogService dialogService) : base(eventAggregator,
         dialogService)
     {
         #region 属性初始化
@@ -104,13 +110,35 @@ public class ViewAboutViewModel : ViewModelBase
 
     public DelegateCommand CheckUpdateCommand => _checkUpdateCommand ??= new DelegateCommand(ExecuteCheckUpdateCommand);
 
+    private bool IsCheckVersion = false;
     /// <summary>
     /// 检查更新事件
     /// </summary>
-    private void ExecuteCheckUpdateCommand()
+    private async void ExecuteCheckUpdateCommand()
     {
-        //eventAggregator.GetEvent<MessageEvent>().Publish("开始查找更新，请稍后~");
-        EventAggregator.GetEvent<MessageEvent>().Publish("请前往主页下载最新版~");
+        if (IsCheckVersion) return;
+        IsCheckVersion = true;
+        (Version version, string body) =await new VersionCheckerService().GetLatestVersion();
+        if(version == null)
+        {
+            EventAggregator.GetEvent<MessageEvent>().Publish("检查失败，请稍后重试~");
+            return;
+        }
+        #if DEBUG
+        var versionString = AppVersion.Replace("-debug", string.Empty);
+        #endif
+        var curr_version = Version.Parse(versionString);
+        if(curr_version < version)
+        {
+            await DialogService?.ShowDialogAsync(NewVersionAvailableDialogViewModel.Tag, new Prism.Services.Dialogs.DialogParameters { { "body", body } }, result =>
+            {
+                if(result.Result == ButtonResult.OK)
+                {
+                    PlatformHelper.Open("https://github.com/yaobiao131/downkyicore/releases/latest", EventAggregator);
+                }
+            })!;
+        }
+        IsCheckVersion = false;
     }
 
     // 意见反馈事件
@@ -279,7 +307,7 @@ public class ViewAboutViewModel : ViewModelBase
         PlatformHelper.Open("FFmpeg_LICENSE.txt");
     }
 
-    #endregion
+#endregion
 
     /// <summary>
     /// 发送需要显示的tip
diff --git a/DownKyi/Views/Dialogs/NewVersionAvailableDialog.axaml b/DownKyi/Views/Dialogs/NewVersionAvailableDialog.axaml
new file mode 100644
index 0000000..983760e
--- /dev/null
+++ b/DownKyi/Views/Dialogs/NewVersionAvailableDialog.axaml
@@ -0,0 +1,62 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+            Width="400"
+			 Height="360"
+			    xmlns:prism="http://prismlibrary.com/"
+			   xmlns:prismExtension="clr-namespace:DownKyi.PrismExtension.Dialog"
+			    prism:ViewModelLocator.AutoWireViewModel="True"
+			  xmlns:vmd="clr-namespace:DownKyi.ViewModels.Dialogs"
+			  x:DataType="vmd:NewVersionAvailableDialogViewModel"
+             x:Class="DownKyi.Views.Dialogs.NewVersionAvailableDialog">
+	<Border BorderBrush="{DynamicResource BrushWindowBorder}"
+			CornerRadius="10"
+			BorderThickness="1,1,0.6,0.6">
+	
+		<Grid Margin="10"  RowDefinitions="2*,6*,3*">
+			<Grid ColumnDefinitions="2*,2*,*" VerticalAlignment="Top" Grid.Row="0">
+				<Button 
+				 Grid.Column="2"
+				  Command="{Binding CloseCommand}"
+				  ToolTip.Tip="{DynamicResource Close}"
+				  Theme="{StaticResource CloseBtnStyle}">
+					<Path
+						Width="{Binding CloseIcon.Width}"
+						Height="{Binding CloseIcon.Height}"
+						Data="{Binding CloseIcon.Data}"
+						Fill="{DynamicResource ColorSystemBtnTintDark}"
+						Stretch="UniformToFill" />
+				</Button>
+			</Grid>
+			<TextBlock 
+					    Text="{DynamicResource NewVersionTitle}"
+					   FontSize="15"
+					   TextAlignment="Center" 
+					   Grid.Row="0"/>
+					<ScrollViewer
+					 Grid.Row="1"
+					  VerticalScrollBarVisibility="Auto">
+						<ItemsControl ItemsSource="{Binding Messages}">
+							<ItemsControl.ItemTemplate>
+								<DataTemplate>
+									<TextBlock>
+										<TextBlock.Inlines>
+											<Run Text="{Binding Text}" FontWeight="{Binding FontWeight}" FontSize="{Binding FontSize}" />
+										</TextBlock.Inlines>
+									</TextBlock>
+								</DataTemplate>
+							</ItemsControl.ItemTemplate>
+						</ItemsControl>
+					</ScrollViewer>
+			<Grid Grid.Row="2" ColumnDefinitions="2*,2*,2*" RowDefinitions="2.5*,*,2*">
+				<Button Grid.Column="1" CornerRadius="10"
+						Foreground="White"
+						Grid.Row="2"
+						Command="{Binding AllowCommand}"
+						 BorderBrush="Transparent" BorderThickness="0"
+						 Content="{DynamicResource ActionUpdate}" Background="#FF6699"/>
+
+				
+			</Grid>
+		</Grid>
+		</Border>
+</UserControl>
diff --git a/DownKyi/Views/Dialogs/NewVersionAvailableDialog.axaml.cs b/DownKyi/Views/Dialogs/NewVersionAvailableDialog.axaml.cs
new file mode 100644
index 0000000..f2c2994
--- /dev/null
+++ b/DownKyi/Views/Dialogs/NewVersionAvailableDialog.axaml.cs
@@ -0,0 +1,13 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DownKyi.Views.Dialogs;
+
+public partial class NewVersionAvailableDialog : UserControl
+{
+    public NewVersionAvailableDialog()
+    {
+        InitializeComponent();
+    }
+}
\ No newline at end of file