diff --git a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs
index 49c8899bc4..c2016a4ba2 100644
--- a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs
+++ b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs
@@ -19,7 +19,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
 
     private const string ProxyDirectory = "ClientProxies";
 
-    private static readonly string[] ServicePostfixes = { "AppService", "ApplicationService", "IntService", "IntegrationService" , "Service"};
+    private readonly static string[] ServicePostfixes = { "AppService", "ApplicationService", "IntService", "IntegrationService" , "Service"};
     private const string AppServicePrefix = "Volo.Abp.Application.Services";
 
     private const string NamespacePlaceholder = "<namespace>";
@@ -29,7 +29,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
     private const string ClassNamePlaceholder = "<className>";
     private const string ServiceInterfacePlaceholder = "<serviceInterface>";
     private const string DtoClassNamePlaceholder = "<dtoName>";
-    private static readonly string ClassTemplate = "// This file is automatically generated by ABP framework to use MVC Controllers from CSharp" +
+    private readonly static string ClassTemplate = "// This file is automatically generated by ABP framework to use MVC Controllers from CSharp" +
                                                    $"{Environment.NewLine}<using>" +
                                                    $"{Environment.NewLine}" +
                                                    $"{Environment.NewLine}// ReSharper disable once CheckNamespace" +
@@ -44,7 +44,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
                                                    $"{Environment.NewLine}}}" +
                                                    $"{Environment.NewLine}";
 
-    private static readonly string ClassTemplateEmptyPart = "// This file is part of <className>, you can customize it here" +
+    private readonly static string ClassTemplateEmptyPart = "// This file is part of <className>, you can customize it here" +
                                                    $"{Environment.NewLine}// ReSharper disable once CheckNamespace" +
                                                    $"{Environment.NewLine}namespace <namespace>;" +
                                                    $"{Environment.NewLine}" +
@@ -53,7 +53,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
                                                    $"{Environment.NewLine}}}" +
                                                    $"{Environment.NewLine}";
 
-    private static readonly string InterfaceTemplate = "// This file is automatically generated by ABP framework to use MVC Controllers from CSharp" +
+    private readonly static string InterfaceTemplate = "// This file is automatically generated by ABP framework to use MVC Controllers from CSharp" +
                                                        $"{Environment.NewLine}<using>" +
                                                        $"{Environment.NewLine}" +
                                                        $"{Environment.NewLine}// ReSharper disable once CheckNamespace" +
@@ -65,24 +65,22 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
                                                        $"{Environment.NewLine}}}" +
                                                        $"{Environment.NewLine}";
 
-    private static readonly string DtoTemplate = "// This file is automatically generated by ABP framework to use MVC Controllers from CSharp" +
-                                                                       $"{Environment.NewLine}using System;" +
-                                                                       $"{Environment.NewLine}using System.Collections.Generic;" +
-                                                                       $"{Environment.NewLine}using Volo.Abp.Application.Dtos;" +
-                                                                       $"{Environment.NewLine}using Volo.Abp.ObjectExtending;" +
-                                                                       $"{Environment.NewLine}<using>" +
-                                                                       $"{Environment.NewLine}" +
-                                                                       $"{Environment.NewLine}// ReSharper disable once CheckNamespace" +
-                                                                       $"{Environment.NewLine}namespace <namespace>;" +
-                                                                       $"{Environment.NewLine}" +
-                                                                       $"{Environment.NewLine}public <dtoName>" +
-                                                                       $"{Environment.NewLine}{{" +
-                                                                       $"{Environment.NewLine}    <property>" +
-                                                                       $"{Environment.NewLine}}}" +
-                                                                       $"{Environment.NewLine}";
-    private static readonly List<string> ClassUsingNamespaceList = new()
+    private readonly static string DtoTemplate = "// This file is automatically generated by ABP framework to use MVC Controllers from CSharp" +
+                                                 $"{Environment.NewLine}<using>" +
+                                                 $"{Environment.NewLine}" +
+                                                 $"{Environment.NewLine}// ReSharper disable once CheckNamespace" +
+                                                 $"{Environment.NewLine}namespace <namespace>;" +
+                                                 $"{Environment.NewLine}" +
+                                                 $"{Environment.NewLine}public <dtoName>" +
+                                                 $"{Environment.NewLine}{{" +
+                                                 $"{Environment.NewLine}    <property>" +
+                                                 $"{Environment.NewLine}}}" +
+                                                 $"{Environment.NewLine}";
+
+    private readonly static List<string> ClassUsingNamespaceList = new()
     {
         "using System;",
+        "using System.Collections.Generic;",
         "using System.Threading.Tasks;",
         "using Volo.Abp.Application.Dtos;",
         "using Volo.Abp.Http.Client;",
@@ -91,14 +89,23 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
         "using Volo.Abp.Http.Client.ClientProxying;"
     };
 
-    private static readonly List<string> InterfaceUsingNamespaceList = new()
+    private readonly static List<string> InterfaceUsingNamespaceList = new()
     {
         "using System;",
+        "using System.Collections.Generic;",
         "using System.Threading.Tasks;",
         "using Volo.Abp.Application.Dtos;",
         "using Volo.Abp.Application.Services;"
     };
 
+    private readonly static List<string> DtoUsingNamespaceList = new()
+    {
+        "using System;",
+        "using System.Collections.Generic;",
+        "using Volo.Abp.Application.Dtos;",
+        "using Volo.Abp.ObjectExtending;",
+    };
+
     public CSharpServiceProxyGenerator(
         CliHttpClientFactory cliHttpClientFactory,
         IJsonSerializer jsonSerializer) :
@@ -106,7 +113,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
     {
     }
 
-    public override async Task GenerateProxyAsync(GenerateProxyArgs args)
+    public async override Task GenerateProxyAsync(GenerateProxyArgs args)
     {
         CheckWorkDirectory(args.WorkDirectory);
         CheckFolder(args.Folder);
@@ -418,7 +425,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
         foreach (var type in applicationApiDescriptionModel.Types.Where(x => types.Contains(x.Key)))
         {
             var dto = new StringBuilder(DtoTemplate);
-            var dtoUsingNamespaceList = new List<string>()
+            var dtoUsingNamespaceList = new List<string>(DtoUsingNamespaceList)
             {
                 $"using {GetTypeNamespace(type.Key)};"
             };
@@ -478,7 +485,7 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
                 }
             }
 
-            dto.Replace($"{UsingPlaceholder}", string.Join(Environment.NewLine, dtoUsingNamespaceList.OrderBy(x => x).Select(x => x)));
+            dto.Replace($"{UsingPlaceholder}", string.Join(Environment.NewLine, dtoUsingNamespaceList.Distinct().OrderBy(x => x).Select(x => x)));
             dto.Replace(PropertyPlaceholder, properties.ToString());
 
             var folder = args.Folder.IsNullOrWhiteSpace()