diff --git a/STranslate/MainWindow.xaml b/STranslate/MainWindow.xaml
index 38fed92..e8e23d3 100644
--- a/STranslate/MainWindow.xaml
+++ b/STranslate/MainWindow.xaml
@@ -106,7 +106,7 @@
                     <!--ComBoxItem-->
                     <Style TargetType="ComboBoxItem">
                         <Setter Property="MinHeight" Value="22"></Setter>
-                        <Setter Property="MinWidth" Value="80"></Setter>
+                        <Setter Property="MinWidth" Value="40"></Setter>
                         <Setter Property="Template">
                             <Setter.Value>
                                 <ControlTemplate TargetType="ComboBoxItem">
@@ -133,7 +133,7 @@
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="{x:Type ComboBox}">
-                        <Border BorderThickness="0" CornerRadius="5" Width="100" Height="30" Background="{TemplateBinding Background}" >
+                        <Border BorderThickness="0" CornerRadius="5" Width="80" Height="30" Background="{TemplateBinding Background}" >
                             <Grid>
                                 <Grid.ColumnDefinitions>
                                     <ColumnDefinition Width="3*"/>
@@ -302,6 +302,12 @@
                         </ControlTemplate>
                     </Button.Template>
                 </Button>
+                <ComboBox Style="{StaticResource cmbstyle}"
+                          Margin="0,5,10,0"
+                          ItemsSource="{Binding TranslationInterface}"
+                          DisplayMemberPath="Name"
+                          SelectedItem="{Binding SelectedTranslationInterface}"
+                          HorizontalAlignment="Right"/>
             </Grid>
             
             <!--input-->
diff --git a/STranslate/ViewModel/MainVM.cs b/STranslate/ViewModel/MainVM.cs
index 58b0db5..a8c9062 100644
--- a/STranslate/ViewModel/MainVM.cs
+++ b/STranslate/ViewModel/MainVM.cs
@@ -19,7 +19,6 @@ namespace STranslate.ViewModel
         //[System.Runtime.InteropServices.DllImport("deepl.dll", EntryPoint = "run")]
         //extern static void run();
 
-        public string defaultApi = "https://zggsong.cn/tt"; //https://deepl.deno.dev/translate、https://zggsong.cn/tt、http://127.0.0.1:8000/translate
         private static Dictionary<string, LanguageEnum> LanguageEnumDict { get => TranslateUtil.GetEnumList<LanguageEnum>(); }
 
         public MainVM()
@@ -30,6 +29,9 @@ namespace STranslate.ViewModel
             OutputCombo = LanguageEnumDict.Keys.ToList();
             OutputComboSelected = LanguageEnum.AUTO.GetDescription();
 
+            //初始化接口
+            SelectedTranslationInterface = TranslationInterface[0];
+
             //复制输入
             CopyInputCmd = new RelayCommand((_) => true, (_) =>
             {
@@ -103,11 +105,11 @@ namespace STranslate.ViewModel
                 {
                     var autoRet = AutomaticLanguageRecognition(InputTxt);
                     IdentifyLanguage = autoRet.Item1;
-                    translateResp = await TranslateUtil.TranslateDeepLAsync(defaultApi, InputTxt, LanguageEnumDict[autoRet.Item2], LanguageEnumDict[InputComboSelected]);
+                    translateResp = await TranslateUtil.TranslateDeepLAsync(SelectedTranslationInterface.Api, InputTxt, LanguageEnumDict[autoRet.Item2], LanguageEnumDict[InputComboSelected]);
                 }
                 else
                 {
-                    translateResp = await TranslateUtil.TranslateDeepLAsync(defaultApi, InputTxt, LanguageEnumDict[OutputComboSelected], LanguageEnumDict[InputComboSelected]);
+                    translateResp = await TranslateUtil.TranslateDeepLAsync(SelectedTranslationInterface.Api, InputTxt, LanguageEnumDict[OutputComboSelected], LanguageEnumDict[InputComboSelected]);
                 }
 
                 //百度 Api
@@ -238,6 +240,38 @@ namespace STranslate.ViewModel
         private string _OutputComboSelected;
         public string OutputComboSelected { get => _OutputComboSelected; set => UpdateProperty(ref _OutputComboSelected, value); }
 
+        /// <summary>
+        /// 目标接口
+        /// </summary>
+        private List<TranslationInterface> _TranslationInterface = new List<TranslationInterface>
+        {
+            new TranslationInterface
+            {
+                Name = "zu1k",
+                Api = "https://deepl.deno.dev/translate"
+            },
+            new TranslationInterface
+            {
+                Name = "zggsong",
+                Api = "https://zggsong.cn/tt"
+            },
+            new TranslationInterface
+            {
+                Name = "local",
+                Api = "http://127.0.0.1:8000/translate"
+            }
+        };
+        public List<TranslationInterface> TranslationInterface { get => _TranslationInterface; set => UpdateProperty(ref _TranslationInterface, value); }
+        private TranslationInterface _SelectedTranslationInterface;
+        public TranslationInterface SelectedTranslationInterface { get => _SelectedTranslationInterface; set => UpdateProperty(ref _SelectedTranslationInterface, value); }
+
+
         #endregion Params
     }
+
+    public class TranslationInterface
+    {
+        public string Name { get; set; }
+        public string Api { get; set; }
+    }
 }
\ No newline at end of file