diff --git a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/controller/admin/user/UserController.java b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/controller/admin/user/UserController.java
index 7cb7d78..534d743 100644
--- a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/controller/admin/user/UserController.java
+++ b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/controller/admin/user/UserController.java
@@ -134,13 +134,8 @@ public class UserController {
     @Operation(summary = "获取用户精简信息列表", description = "只包含被开启的用户，主要用于前端的下拉选项")
     public CommonResult<List<UserSimpleRespVO>> getSimpleUserList(
             @RequestParam(value = "deptId", required = false) Long deptId) {
-        List<AdminUserDO> list;
-        if (deptId != null) {
-            List<Long> deptIds = Collections.singletonList(deptId);
-            list = userService.getDeptUsers(deptIds);
-        } else {
-            list = userService.getUserListByStatus(CommonStatusEnum.ENABLE.getStatus());
-        }
+        List<AdminUserDO> list = userService.getUserListByStatus(
+                CommonStatusEnum.ENABLE.getStatus(), deptId);
 
         // 拼接数据
         Map<Long, DeptDO> deptMap = deptService.getDeptMap(
diff --git a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/dal/mysql/user/AdminUserMapper.java b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/dal/mysql/user/AdminUserMapper.java
index c0c9be8..4a17944 100644
--- a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/dal/mysql/user/AdminUserMapper.java
+++ b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/dal/mysql/user/AdminUserMapper.java
@@ -41,7 +41,13 @@ public interface AdminUserMapper extends BaseMapperX<AdminUserDO> {
     }
 
     default List<AdminUserDO> selectListByStatus(Integer status) {
-        return selectList(AdminUserDO::getStatus, status);
+        return selectListByStatusAndDeptId(status, null);
+    }
+
+    default List<AdminUserDO> selectListByStatusAndDeptId(Integer status, Long deptId) {
+        return selectList(new LambdaQueryWrapperX<AdminUserDO>()
+                .eq(AdminUserDO::getStatus, status)
+                .eqIfPresent(AdminUserDO::getDeptId, deptId));
     }
 
     default List<AdminUserDO> selectListByDeptIds(Collection<Long> deptIds) {
diff --git a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserService.java b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserService.java
index 4ec9765..63d9748 100644
--- a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserService.java
+++ b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserService.java
@@ -12,6 +12,7 @@ import cn.iocoder.yudao.module.system.controller.admin.user.vo.user.UserPageReqV
 import cn.iocoder.yudao.module.system.controller.admin.user.vo.user.UserSaveReqVO;
 import cn.iocoder.yudao.module.system.dal.dataobject.user.AdminUserDO;
 import jakarta.validation.Valid;
+import org.springframework.lang.Nullable;
 
 import java.util.Collection;
 import java.util.HashMap;
@@ -214,11 +215,13 @@ public interface AdminUserService {
     List<AdminUserDO> getUserListByStatus(Integer status);
 
     /**
-     * 获得指定部门的用户
-     * @param deptIds
-     * @return
+     * 获得指定状态和部门的用户们
+     *
+     * @param status 状态
+     * @param deptId 部门编号，{@code null} 表示不筛选部门
+     * @return 用户们
      */
-    List<AdminUserDO> getDeptUsers(Collection<Long> deptIds);
+    List<AdminUserDO> getUserListByStatus(Integer status, @Nullable Long deptId);
 
     /**
      * 判断密码是否匹配
diff --git a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImpl.java b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImpl.java
index c2840b8..d9dd5c8 100644
--- a/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImpl.java
+++ b/yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImpl.java
@@ -560,12 +560,12 @@ public class AdminUserServiceImpl implements AdminUserService {
 
     @Override
     public List<AdminUserDO> getUserListByStatus(Integer status) {
-        return userMapper.selectListByStatus(status);
+        return getUserListByStatus(status, null);
     }
 
     @Override
-    public List<AdminUserDO> getDeptUsers(Collection<Long> deptIds) {
-        return userMapper.selectListByDeptIds(deptIds);
+    public List<AdminUserDO> getUserListByStatus(Integer status, Long deptId) {
+        return userMapper.selectListByStatusAndDeptId(status, deptId);
     }
 
     @Override
diff --git a/yudao-module-system/src/test/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImplTest.java b/yudao-module-system/src/test/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImplTest.java
index 68c8510..1716226 100644
--- a/yudao-module-system/src/test/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImplTest.java
+++ b/yudao-module-system/src/test/java/cn/iocoder/yudao/module/system/service/user/AdminUserServiceImplTest.java
@@ -722,6 +722,23 @@ public class AdminUserServiceImplTest extends BaseDbUnitTest {
     }
 
     @Test
+    public void testGetUserListByStatusAndDeptId() {
+        // mock 数据
+        AdminUserDO user = randomAdminUserDO(o -> o.setStatus(CommonStatusEnum.ENABLE.getStatus()).setDeptId(1L));
+        userMapper.insert(user);
+        // 测试 status 不匹配
+        userMapper.insert(cloneIgnoreId(user, o -> o.setStatus(CommonStatusEnum.DISABLE.getStatus())));
+        // 测试 deptId 不匹配
+        userMapper.insert(cloneIgnoreId(user, o -> o.setDeptId(2L)));
+
+        // 调用
+        List<AdminUserDO> result = userService.getUserListByStatus(CommonStatusEnum.ENABLE.getStatus(), 1L);
+        // 断言
+        assertEquals(1, result.size());
+        assertEquals(user, result.get(0));
+    }
+
+    @Test
     public void testValidateUserList_success() {
         // mock 数据
         AdminUserDO userDO = randomAdminUserDO().setStatus(CommonStatusEnum.ENABLE.getStatus());