diff --git a/src/App.preference.cs b/src/App.preference.cs
index 29ed49e5..5263ce23 100644
--- a/src/App.preference.cs
+++ b/src/App.preference.cs
@@ -53,6 +53,10 @@ namespace SourceGit {
             /// </summary>
             public string Locale { get; set; } = "en_US";
             /// <summary>
+            ///     Base URL to get avatar
+            /// </summary>
+            public string AvatarServer { get; set; } = "https://www.gravatar.com/avatar";
+            /// <summary>
             ///     Main window width
             /// </summary>
             public double WindowWidth { get; set; }
diff --git a/src/Helpers/Avatar.cs b/src/Helpers/Avatar.cs
index 3ae7901a..c2bf1eba 100644
--- a/src/Helpers/Avatar.cs
+++ b/src/Helpers/Avatar.cs
@@ -157,7 +157,7 @@ namespace SourceGit.Helpers {
 
             Action job = () => {
                 try {
-                    HttpWebRequest req = WebRequest.CreateHttp("https://www.gravatar.com/avatar/" + md5 + "?d=404");
+                    HttpWebRequest req = WebRequest.CreateHttp(App.Setting.UI.AvatarServer + md5 + "?d=404");
                     req.Timeout = 2000;
                     req.Method = "GET";
 
diff --git a/src/Resources/Locales/en_US.xaml b/src/Resources/Locales/en_US.xaml
index 904bf9f1..cdc851ea 100644
--- a/src/Resources/Locales/en_US.xaml
+++ b/src/Resources/Locales/en_US.xaml
@@ -348,6 +348,7 @@
     <sys:String x:Key="Text.Preference.Locale">Display Language :</sys:String>
     <sys:String x:Key="Text.Preference.UseLight">Light Theme :</sys:String>
     <sys:String x:Key="Text.Preference.CheckUpdate">Check for Update :</sys:String>
+    <sys:String x:Key="Text.Preference.AvatarServer">Avatar Server :</sys:String>
     <sys:String x:Key="Text.Preference.Git">GIT INSTANCE</sys:String>
     <sys:String x:Key="Text.Preference.Git.Path">Install Path :</sys:String>
     <sys:String x:Key="Text.Preference.Git.Path.Placeholder">Input path for git.exe</sys:String>
diff --git a/src/Resources/Locales/zh_CN.xaml b/src/Resources/Locales/zh_CN.xaml
index b0121cec..bc2f6903 100644
--- a/src/Resources/Locales/zh_CN.xaml
+++ b/src/Resources/Locales/zh_CN.xaml
@@ -348,6 +348,7 @@
     <sys:String x:Key="Text.Preference.Locale">显示语言 ：</sys:String>
     <sys:String x:Key="Text.Preference.UseLight">启用浅色主题 ：</sys:String>
     <sys:String x:Key="Text.Preference.CheckUpdate">检测更新 ：</sys:String>
+    <sys:String x:Key="Text.Preference.AvatarServer">头像服务 ：</sys:String>
     <sys:String x:Key="Text.Preference.Git">GIT配置</sys:String>
     <sys:String x:Key="Text.Preference.Git.Path">安装路径 ：</sys:String>
     <sys:String x:Key="Text.Preference.Git.Path.Placeholder">填写git.exe所在位置</sys:String>
diff --git a/src/UI/SettingDialog.xaml b/src/UI/SettingDialog.xaml
index eac27771..98cd44ea 100644
--- a/src/UI/SettingDialog.xaml
+++ b/src/UI/SettingDialog.xaml
@@ -8,7 +8,7 @@
         xmlns:app="clr-namespace:SourceGit"
         xmlns:git="clr-namespace:SourceGit.Git"
         mc:Ignorable="d"
-        Height="560" Width="500"
+        Height="588" Width="500"
         Title="{StaticResource Text.Preference}"
         WindowStartupLocation="CenterOwner" ResizeMode="NoResize">
 
@@ -63,6 +63,7 @@
                     <RowDefinition Height="28"/>
                     <RowDefinition Height="28"/>
                     <RowDefinition Height="28"/>
+                    <RowDefinition Height="28"/>
                     <RowDefinition Height="18"/>
                     <RowDefinition Height="36"/>
                     <RowDefinition Height="28"/>
@@ -112,10 +113,20 @@
                     IsChecked="{Binding Source={x:Static app:App.Setting}, Path=CheckUpdate, Mode=TwoWay}"
                     TextElement.FontStyle="Italic"/>
 
+                <Label Grid.Row="4" Grid.Column="0" Content="{StaticResource Text.Preference.AvatarServer}" HorizontalAlignment="Right"/>
+                <ComboBox Grid.Row="4" Grid.Column="1"
+                    x:Name="cmbAvatarServer"
+                    Height="24"
+                    Width="140"
+                    HorizontalAlignment="Left"
+                    VerticalContentAlignment="Center"
+                    DisplayMemberPath="Desc"
+                    SelectionChanged="ChangeAvatarServer"/>
+
                 <!-- GIT相关配置 -->
-                <Label Grid.Row="5" Grid.ColumnSpan="2" Content="{StaticResource Text.Preference.Git}" FontSize="16" FontWeight="DemiBold" Opacity=".85"/>
-                <Label Grid.Row="6" Grid.Column="0" Content="{StaticResource Text.Preference.Git.Path}" HorizontalAlignment="Right"/>
-                <Grid Grid.Row="6" Grid.Column="1">
+                <Label Grid.Row="6" Grid.ColumnSpan="2" Content="{StaticResource Text.Preference.Git}" FontSize="16" FontWeight="DemiBold" Opacity=".85"/>
+                <Label Grid.Row="7" Grid.Column="0" Content="{StaticResource Text.Preference.Git.Path}" HorizontalAlignment="Right"/>
+                <Grid Grid.Row="7" Grid.Column="1">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="*"/>
                         <ColumnDefinition Width="28"/>
@@ -130,8 +141,8 @@
                         <Path Width="14" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Folder}"/>
                     </Button>
                 </Grid>
-                <Label Grid.Row="7" Grid.Column="0" Content="{StaticResource Text.Preference.Git.Dir}" HorizontalAlignment="Right"/>
-                <Grid Grid.Row="7" Grid.Column="1">
+                <Label Grid.Row="8" Grid.Column="0" Content="{StaticResource Text.Preference.Git.Dir}" HorizontalAlignment="Right"/>
+                <Grid Grid.Row="8" Grid.Column="1">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="*"/>
                         <ColumnDefinition Width="28"/>
@@ -148,13 +159,13 @@
                 </Grid>
 
                 <!-- Global User -->
-                <Label Grid.Row="9" Grid.ColumnSpan="2" Content="{StaticResource Text.Preference.Global}" FontSize="16" FontWeight="DemiBold" Opacity=".85"/>
-                <Label Grid.Row="10" Grid.Column="0" Content="{StaticResource Text.Preference.User}" HorizontalAlignment="Right"/>
-                <TextBox Grid.Row="10" Grid.Column="1" Height="24" helpers:TextBoxHelper.Placeholder="Global git user name" Text="{Binding ElementName=me, Path=GlobalUser, Mode=TwoWay}"/>
-                <Label Grid.Row="11" Grid.Column="0" Content="{StaticResource Text.Preference.Email}" HorizontalAlignment="Right"/>
-                <TextBox Grid.Row="11" Grid.Column="1" Height="24" helpers:TextBoxHelper.Placeholder="Global git user email" Text="{Binding ElementName=me, Path=GlobalUserEmail, Mode=TwoWay}"/>
-                <Label Grid.Row="12" Grid.Column="0" Content="{StaticResource Text.Preference.CRLF}" HorizontalAlignment="Right"/>
-                <ComboBox Grid.Row="12" Grid.Column="1"
+                <Label Grid.Row="10" Grid.ColumnSpan="2" Content="{StaticResource Text.Preference.Global}" FontSize="16" FontWeight="DemiBold" Opacity=".85"/>
+                <Label Grid.Row="11" Grid.Column="0" Content="{StaticResource Text.Preference.User}" HorizontalAlignment="Right"/>
+                <TextBox Grid.Row="11" Grid.Column="1" Height="24" helpers:TextBoxHelper.Placeholder="Global git user name" Text="{Binding ElementName=me, Path=GlobalUser, Mode=TwoWay}"/>
+                <Label Grid.Row="12" Grid.Column="0" Content="{StaticResource Text.Preference.Email}" HorizontalAlignment="Right"/>
+                <TextBox Grid.Row="12" Grid.Column="1" Height="24" helpers:TextBoxHelper.Placeholder="Global git user email" Text="{Binding ElementName=me, Path=GlobalUserEmail, Mode=TwoWay}"/>
+                <Label Grid.Row="13" Grid.Column="0" Content="{StaticResource Text.Preference.CRLF}" HorizontalAlignment="Right"/>
+                <ComboBox Grid.Row="13" Grid.Column="1"
                     x:Name="cmbAutoCRLF"
                     Height="24"
                     HorizontalAlignment="Stretch"
@@ -171,9 +182,9 @@
                 </ComboBox>
 
                 <!-- 合并工具配置 -->
-                <Label Grid.Row="14" Grid.ColumnSpan="2" Content="{StaticResource Text.Preference.Merger}" FontSize="16" FontWeight="DemiBold" Opacity=".85"/>
-                <Label Grid.Row="15" Grid.Column="0" Content="{StaticResource Text.Preference.Merger.Type}" HorizontalAlignment="Right"/>
-                <ComboBox Grid.Row="15" Grid.Column="1"
+                <Label Grid.Row="15" Grid.ColumnSpan="2" Content="{StaticResource Text.Preference.Merger}" FontSize="16" FontWeight="DemiBold" Opacity=".85"/>
+                <Label Grid.Row="16" Grid.Column="0" Content="{StaticResource Text.Preference.Merger.Type}" HorizontalAlignment="Right"/>
+                <ComboBox Grid.Row="16" Grid.Column="1"
                     Height="24"
                     Padding="2,0,0,0"
                     HorizontalContentAlignment="Left"
@@ -182,8 +193,8 @@
                     ItemsSource="{Binding Source={x:Static git:MergeTool.Supported}}"
                     DisplayMemberPath="Name"
                     SelectionChanged="ChangeMergeTool"/>
-                <Label Grid.Row="16" Grid.Column="0" Content="{StaticResource Text.Preference.Merger.Path}" HorizontalAlignment="Right"/>
-                <Grid Grid.Row="16" Grid.Column="1">
+                <Label Grid.Row="17" Grid.Column="0" Content="{StaticResource Text.Preference.Merger.Path}" HorizontalAlignment="Right"/>
+                <Grid Grid.Row="17" Grid.Column="1">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="*"/>
                         <ColumnDefinition Width="28"/>
@@ -198,8 +209,8 @@
                         <Path Width="14" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Folder}"/>
                     </Button>
                 </Grid>
-                <Label Grid.Row="17" Grid.Column="0" Content="{StaticResource Text.Preference.Merger.Cmd}" HorizontalAlignment="Right"/>
-                <TextBlock Grid.Row="17" Grid.Column="1" 
+                <Label Grid.Row="18" Grid.Column="0" Content="{StaticResource Text.Preference.Merger.Cmd}" HorizontalAlignment="Right"/>
+                <TextBlock Grid.Row="18" Grid.Column="1" 
                     x:Name="txtMergeParam"
                     VerticalAlignment="Center"
                     Foreground="{StaticResource Brush.FG2}"/>
diff --git a/src/UI/SettingDialog.xaml.cs b/src/UI/SettingDialog.xaml.cs
index edf551a3..65aaf767 100644
--- a/src/UI/SettingDialog.xaml.cs
+++ b/src/UI/SettingDialog.xaml.cs
@@ -63,6 +63,19 @@ namespace SourceGit.UI {
             }
         }
 
+        /// <summary>
+        ///     Avatar server
+        /// </summary>
+        public class AvatarServer {
+            public string Value { get; set; }
+            public string Desc { get; set; }
+
+            public AvatarServer(string v, string d) {
+                Value = v;
+                Desc = d;
+            }
+        }
+
         /// <summary>
         ///     Constructor.
         /// </summary>
@@ -81,6 +94,13 @@ namespace SourceGit.UI {
             cmbLang.ItemsSource = locales;
             cmbLang.SelectedItem = locales.Find(o => o.Value == App.Setting.UI.Locale);
 
+            var avatarServers = new List<AvatarServer>() {
+                new AvatarServer("https://www.gravatar.com/avatar/", "Gravatar官网"),
+                new AvatarServer("https://cdn.s.loli.top/avatar/", "Gravatar中国CDN"),
+            };
+            cmbAvatarServer.ItemsSource = avatarServers;
+            cmbAvatarServer.SelectedItem = avatarServers.Find(o => o.Value == App.Setting.UI.AvatarServer);
+
             int mergeType = App.Setting.Tools.MergeTool;
             var merger = Git.MergeTool.Supported[mergeType];
             txtMergePath.IsReadOnly = !merger.IsConfigured;
@@ -126,6 +146,21 @@ namespace SourceGit.UI {
             App.SaveSetting();
         }
 
+        /// <summary>
+        ///     Set avatar server.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void ChangeAvatarServer(object sender, SelectionChangedEventArgs e) {
+            if (e.AddedItems.Count != 1) return;
+
+            var s = e.AddedItems[0] as AvatarServer;
+            if (s == null) return;
+
+            App.Setting.UI.AvatarServer = s.Value;
+            App.SaveSetting();
+        }
+
         /// <summary>
         ///     Select git executable file path.
         /// </summary>