diff --git a/kernel-s-sys/sys-business-hr/src/main/java/cn/stylefeng/roses/kernel/sys/modular/user/biz/UserIntegrationService.java b/kernel-s-sys/sys-business-hr/src/main/java/cn/stylefeng/roses/kernel/sys/modular/user/biz/UserIntegrationService.java
index dd5b6536b..4a6062af0 100644
--- a/kernel-s-sys/sys-business-hr/src/main/java/cn/stylefeng/roses/kernel/sys/modular/user/biz/UserIntegrationService.java
+++ b/kernel-s-sys/sys-business-hr/src/main/java/cn/stylefeng/roses/kernel/sys/modular/user/biz/UserIntegrationService.java
@@ -1,10 +1,16 @@
 package cn.stylefeng.roses.kernel.sys.modular.user.biz;
 
+import cn.hutool.core.util.ObjectUtil;
+import cn.stylefeng.roses.kernel.file.api.FileInfoApi;
 import cn.stylefeng.roses.kernel.sys.api.SysUserServiceApi;
 import cn.stylefeng.roses.kernel.sys.api.pojo.SimpleUserDTO;
 import cn.stylefeng.roses.kernel.sys.api.pojo.UserOrgDTO;
+import cn.stylefeng.roses.kernel.sys.modular.user.entity.SysUser;
+import cn.stylefeng.roses.kernel.sys.modular.user.service.SysUserService;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.springframework.stereotype.Service;
 
+import javax.annotation.Resource;
 import java.util.List;
 
 /**
@@ -16,9 +22,42 @@ import java.util.List;
 @Service
 public class UserIntegrationService implements SysUserServiceApi {
 
+    @Resource
+    private SysUserService sysUserService;
+
+    @Resource
+    private FileInfoApi fileInfoApi;
+
     @Override
     public SimpleUserDTO getUserInfoByUserId(Long userId) {
-        return null;
+
+        if (ObjectUtil.isEmpty(userId)) {
+            return null;
+        }
+
+        LambdaQueryWrapper<SysUser> sysUserLambdaQueryWrapper = new LambdaQueryWrapper<>();
+        sysUserLambdaQueryWrapper.eq(SysUser::getUserId, userId);
+        sysUserLambdaQueryWrapper.select(SysUser::getRealName, SysUser::getAvatar);
+        SysUser sysUser = this.sysUserService.getOne(sysUserLambdaQueryWrapper);
+        if (sysUser == null) {
+            return null;
+        }
+
+        SimpleUserDTO simpleUserDTO = new SimpleUserDTO();
+        simpleUserDTO.setUserId(userId);
+        simpleUserDTO.setRealName(sysUser.getRealName());
+
+        // 获取头像文件id信息，转化为头像URL
+        Long avatarFileId = sysUser.getAvatar();
+        if (avatarFileId == null) {
+            return null;
+        }
+
+        // 获取头像的访问地址
+        String fileAuthUrl = fileInfoApi.getFileAuthUrl(avatarFileId);
+        simpleUserDTO.setAvatarUrl(fileAuthUrl);
+
+        return simpleUserDTO;
     }
 
     @Override