diff --git a/Yi.Abp.Net8/module/digital-collectibles/Yi.Framework.DigitalCollectibles.Application/Services/Account/WeChatMiniProgramAccountService.cs b/Yi.Abp.Net8/module/digital-collectibles/Yi.Framework.DigitalCollectibles.Application/Services/Account/WeChatMiniProgramAccountService.cs
index 192dc0ba..e5435451 100644
--- a/Yi.Abp.Net8/module/digital-collectibles/Yi.Framework.DigitalCollectibles.Application/Services/Account/WeChatMiniProgramAccountService.cs
+++ b/Yi.Abp.Net8/module/digital-collectibles/Yi.Framework.DigitalCollectibles.Application/Services/Account/WeChatMiniProgramAccountService.cs
@@ -110,7 +110,7 @@ public class WeChatMiniProgramAccountService : ApplicationService
         var userName = GenerateRandomString(6);
         await _accountService.PostTempRegisterAsync(new RegisterDto
         {
-            UserName =$"ls-{userName}",
+            UserName =$"ls_{userName}",
             Password = GenerateRandomString(20),
             Nick = $"临时账号-{userName}"
         });
diff --git a/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Application/Services/AccountService.cs b/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Application/Services/AccountService.cs
index e20527e4..70ff2df4 100644
--- a/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Application/Services/AccountService.cs
+++ b/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Application/Services/AccountService.cs
@@ -324,9 +324,9 @@ namespace Yi.Framework.Rbac.Application.Services
             }
 
             //临时账号
-            if (input.UserName.StartsWith("ls-"))
+            if (input.UserName.StartsWith("ls_"))
             {
-                throw new UserFriendlyException("注册账号不能以ls-字符开头");
+                throw new UserFriendlyException("注册账号不能以ls_字符开头");
             }
             //注册领域逻辑
             await _accountManager.RegisterAsync(input.UserName, input.Password, input.Phone, input.Nick);
diff --git a/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Domain/Managers/UserManager.cs b/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Domain/Managers/UserManager.cs
index a4723df7..cb057052 100644
--- a/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Domain/Managers/UserManager.cs
+++ b/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Domain/Managers/UserManager.cs
@@ -152,12 +152,12 @@ namespace Yi.Framework.Rbac.Domain.Managers
             }
 
             // 正则表达式，匹配只包含数字和字母的字符串
-            string pattern = @"^[a-zA-Z0-9]+$";
+            string pattern = @"^[a-zA-Z0-9_]+$";
 
             bool isMatch = Regex.IsMatch(input.UserName, pattern);
             if (!isMatch)
             {
-                throw new UserFriendlyException("用户名不能包含除【字母】与【数字】的其他字符");
+                throw new UserFriendlyException("用户名不能包含除【字母】与【数字】与【_】的其他字符");
             }
         }