diff --git a/backend/src/main/java/com/yfd/platform/system/service/impl/UserDetailsServiceImpl.java b/backend/src/main/java/com/yfd/platform/system/service/impl/UserDetailsServiceImpl.java
index 6042beea..77506150 100644
--- a/backend/src/main/java/com/yfd/platform/system/service/impl/UserDetailsServiceImpl.java
+++ b/backend/src/main/java/com/yfd/platform/system/service/impl/UserDetailsServiceImpl.java
@@ -1,18 +1,23 @@
 package com.yfd.platform.system.service.impl;
 
 import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.yfd.platform.datasource.DataSource;
 import com.yfd.platform.system.domain.LoginUser;
 import com.yfd.platform.system.domain.SysUser;
 import com.yfd.platform.system.mapper.SysMenuMapper;
 import com.yfd.platform.system.service.IUserService;
+import jakarta.servlet.http.HttpServletRequest;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.stereotype.Service;
 
 import jakarta.annotation.Resource;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
 import java.util.List;
 
 /**
@@ -35,9 +40,19 @@ public class UserDetailsServiceImpl implements UserDetailsService {
     @Override
     @DataSource(name = "master")
     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        // 获取当前请求
+        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
         //根据用户名称或手机号查询用户信息
         QueryWrapper<SysUser> queryWrapper = new QueryWrapper<>();
         queryWrapper.and(wrapper -> wrapper.eq("username", username).or().eq("phone", username));
+        if (attributes != null) {
+            HttpServletRequest request = attributes.getRequest();
+            String tenantId = request.getHeader("Tenant_Id");
+            if(StrUtil.isNotBlank(tenantId)){
+                queryWrapper.eq("TENANT_ID", tenantId);
+            }
+        }
+
         SysUser user = userService.getOne(queryWrapper);
         if (ObjectUtil.isEmpty(user)) {
             throw new RuntimeException("用户账号不存在！");