diff --git a/YiSha.Cache/YiSha.MemoryCache/YiSha.MemoryCache.csproj b/YiSha.Cache/YiSha.MemoryCache/YiSha.MemoryCache.csproj
index 25e99e28..ef11b459 100644
--- a/YiSha.Cache/YiSha.MemoryCache/YiSha.MemoryCache.csproj
+++ b/YiSha.Cache/YiSha.MemoryCache/YiSha.MemoryCache.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="3.1.0" />
+    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="8.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/YiSha.Util/YiSha.Util/YiSha.Util.csproj b/YiSha.Util/YiSha.Util/YiSha.Util.csproj
index 2b5cfe3f..acf91506 100644
--- a/YiSha.Util/YiSha.Util/YiSha.Util.csproj
+++ b/YiSha.Util/YiSha.Util/YiSha.Util.csproj
@@ -6,6 +6,7 @@
 
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
+    <PackageReference Include="Lazy.Captcha.Core" Version="2.0.7" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.1.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
       <PrivateAssets>all</PrivateAssets>
diff --git a/YiSha.Web/YiSha.Admin.Web/Controllers/HomeController.cs b/YiSha.Web/YiSha.Admin.Web/Controllers/HomeController.cs
index 46d34bc8..cb607625 100644
--- a/YiSha.Web/YiSha.Admin.Web/Controllers/HomeController.cs
+++ b/YiSha.Web/YiSha.Admin.Web/Controllers/HomeController.cs
@@ -17,6 +17,8 @@
 using YiSha.Entity.OrganizationManage;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.DependencyInjection;
+using Lazy.Captcha.Core;
+using System.IO;
 
 namespace YiSha.Admin.Web.Controllers
 {
@@ -26,6 +28,12 @@ public class HomeController : BaseController
         private UserBLL userBLL = new UserBLL();
         private LogLoginBLL logLoginBLL = new LogLoginBLL();
         private MenuAuthorizeBLL menuAuthorizeBLL = new MenuAuthorizeBLL();
+        private readonly ICaptcha _captcha;
+
+        public HomeController(ICaptcha captcha)
+        {
+            _captcha = captcha;
+        }
 
         #region 视图功能
         [HttpGet]
@@ -129,11 +137,14 @@ public IActionResult Skin()
         public IActionResult GetCaptchaImage()
         {
             string sessionId = GlobalContext.ServiceProvider?.GetService<IHttpContextAccessor>().HttpContext.Session.Id;
-
-            Tuple<string, int> captchaCode = CaptchaHelper.GetCaptchaCode();
-            byte[] bytes = CaptchaHelper.CreateCaptchaImage(captchaCode.Item1);
-            new SessionHelper().WriteSession("CaptchaCode", captchaCode.Item2);
-            return File(bytes, @"image/jpeg");
+            //Tuple<string, int> captchaCode = CaptchaHelper.GetCaptchaCode();
+            //byte[] bytes = CaptchaHelper.CreateCaptchaImage(captchaCode.Item1);
+            //new SessionHelper().WriteSession("CaptchaCode", captchaCode.Item2);
+            //return File(bytes, @"image/jpeg");
+            var info = _captcha.Generate(sessionId);
+            var stream = new MemoryStream(info.Bytes);
+            new SessionHelper().WriteSession("CaptchaCode", Convert.ToInt32(info.Code));
+            return File(stream, "image/jpeg");
         }
         #endregion
 
diff --git a/YiSha.Web/YiSha.Admin.Web/Startup.cs b/YiSha.Web/YiSha.Admin.Web/Startup.cs
index eb28b0c1..c3bf3f73 100644
--- a/YiSha.Web/YiSha.Admin.Web/Startup.cs
+++ b/YiSha.Web/YiSha.Admin.Web/Startup.cs
@@ -19,6 +19,8 @@
 using YiSha.Util.Model;
 using YiSha.Admin.Web.Controllers;
 using Microsoft.Extensions.Logging;
+using Lazy.Captcha.Core.Generator;
+using Lazy.Captcha.Core;
 
 namespace YiSha.Admin.Web
 {
@@ -68,6 +70,25 @@ public void ConfigureServices(IServiceCollection services)
 
             services.AddDataProtection().PersistKeysToFileSystem(new DirectoryInfo(GlobalContext.HostingEnvironment.ContentRootPath + Path.DirectorySeparatorChar + "DataProtection"));
 
+            //capture code
+            services.AddCaptcha(Configuration, option =>
+            {
+                option.CaptchaType = CaptchaType.ARITHMETIC; // 验证码类型
+                option.CodeLength = 2; // 验证码长度, 要放在CaptchaType设置后.  当类型为算术表达式时，长度代表操作的个数
+                option.ExpirySeconds = 60; // 验证码过期时间
+                option.IgnoreCase = true; // 比较时是否忽略大小写
+                option.StoreageKeyPrefix = ""; // 存储键前缀
+                option.ImageOption.FrameDelay = 30; // 每帧延迟,Animation=true时有效, 默认30
+
+                option.ImageOption.Width = 150; // 验证码宽度
+                option.ImageOption.Height = 50; // 验证码高度
+                //option.ImageOption.BackgroundColor = SixLabors.ImageSharp.Color.White; // 验证码背景色
+                option.ImageOption.InterferenceLineCount = 2; // 干扰线数量
+                option.ImageOption.FontSize = 36; // 字体大小
+                option.ImageOption.FontFamily = DefaultFontFamilys.Instance.Actionj; // 字体
+                option.ImageOption.TextBold = true;// 粗体，该配置2.0.3新增
+            });
+
             Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);  // 注册Encoding
 
             GlobalContext.SystemConfig = Configuration.GetSection("SystemConfig").Get<SystemConfig>();