diff --git a/Src/Dlhis.Basic/Organization/Services/Implements/GainfoOutsourceService.cs b/Src/Dlhis.Basic/Organization/Services/Implements/GainfoOutsourceService.cs
index c8aaaabb..d894d81f 100644
--- a/Src/Dlhis.Basic/Organization/Services/Implements/GainfoOutsourceService.cs
+++ b/Src/Dlhis.Basic/Organization/Services/Implements/GainfoOutsourceService.cs
@@ -1,4 +1,5 @@
-using Dlhis.Basic.Organization.Request;
+using System.Text.RegularExpressions;
+using Dlhis.Basic.Organization.Request;
 using Dlhis.Basic.Organization.Response;
 using Dlhis.Entity.Basic.Entity;
 using Dlhis.Entity.Basic.Enums;
@@ -35,6 +36,7 @@ public class GainfoOutsourceService : IGainfoOutsourceService
     public async Task SaveAsync(GainfoOutsourceRequest request)
     {
         await CheckDuplicate(request);
+
         var sapCodeExists = await _dbContext.Queryable<GainfoEntity>()
             .Where(x => x.Code == request.ExternalInfo.SapCode)
             .AnyAsync();
@@ -51,6 +53,12 @@ public class GainfoOutsourceService : IGainfoOutsourceService
                 var entity = request.Adapt<GainfoEntity>();
                 entity.No = Guid.NewGuid().ToString();
                 entity.Type = GainfoUserTypeEnumType.Outsource;
+
+                if (request.Code.IsPresent())
+                {
+                    IsAlphanumeric(request.Code).ThrowIfFalse("工号只能包含字母和数字");
+                }
+
                 entity.Code = request.Code.IsPresent()
                     ? request.Code
                     : await GetOutSourceCodeAsync();
@@ -338,4 +346,13 @@ public class GainfoOutsourceService : IGainfoOutsourceService
             }
         }
     }
+
+    public static bool IsAlphanumeric(string input)
+    {
+        // 空字符串可根据需要决定是否允许，此处为 false
+        if (string.IsNullOrEmpty(input)) return false;
+
+        // ^ 表示开头，$ 表示结尾，确保整个字符串都由英文数字组成
+        return Regex.IsMatch(input, @"^[a-zA-Z0-9]+$");
+    }
 }
\ No newline at end of file