diff --git a/rdms-system/rdms-system-api/src/main/java/com/njcn/rdms/module/system/enums/ErrorCodeConstants.java b/rdms-system/rdms-system-api/src/main/java/com/njcn/rdms/module/system/enums/ErrorCodeConstants.java
index ec2c205..fbb78c3 100644
--- a/rdms-system/rdms-system-api/src/main/java/com/njcn/rdms/module/system/enums/ErrorCodeConstants.java
+++ b/rdms-system/rdms-system-api/src/main/java/com/njcn/rdms/module/system/enums/ErrorCodeConstants.java
@@ -57,6 +57,7 @@ public interface ErrorCodeConstants {
     // ========== 用户带人关系模块 1-002-003-100 ==========
     ErrorCode USER_MANAGEMENT_RELATION_NOT_FOUND = new ErrorCode(1_002_003_100, "用户带人关系不存在");
     ErrorCode USER_MANAGEMENT_RELATION_MANAGER_EXISTS = new ErrorCode(1_002_003_101, "该用户已有直属上级，不能重复添加");
+    ErrorCode USER_MANAGEMENT_RELATION_EXISTS = new ErrorCode(1_002_003_102, "该用户在带人关系中还在使用，不可删除！");
 
     // ========== 部门模块 1-002-004-000 ==========
     ErrorCode DEPT_NAME_DUPLICATE = new ErrorCode(1_002_004_000, "已经存在该名字的部门");
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserController.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserController.java
index 902ca0b..a68586a 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserController.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserController.java
@@ -141,6 +141,15 @@ public class UserController {
         return success(UserConvert.INSTANCE.convertSimpleList(list, deptMap));
     }
 
+    @GetMapping("/list-by-dept-id")
+    @Operation(summary = "根据部门ID获取该部门和下属部门的用户精简信息列表")
+    @Parameter(name = "deptId", description = "部门ID", required = true)
+    public CommonResult<List<UserSimpleRespVO>> getUserListByDeptId(@RequestParam("deptId") Long deptId) {
+        List<AdminUserDO> list = userService.getAllUserByDeptId(deptId);
+        Map<Long, DeptDO> deptMap = deptService.getDeptMap(convertList(list, AdminUserDO::getDeptId));
+        return success(UserConvert.INSTANCE.convertSimpleList(list, deptMap));
+    }
+
     @GetMapping("/get")
     @Operation(summary = "获得用户详情")
     @Parameter(name = "id", description = "编号", required = true, example = "1024")
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserManagementRelationController.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserManagementRelationController.java
index 59c239f..603a03f 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserManagementRelationController.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/UserManagementRelationController.java
@@ -163,8 +163,8 @@ public class UserManagementRelationController {
     @GetMapping("/tree")
     @Operation(summary = "获取用户带人关系树形结构", description = "用于前端树形控件展示，包含用户的上下级层级关系")
     @PreAuthorize("@ss.hasPermission('system:user-management-relation:query')")
-    public CommonResult<List<UserManagementRelationTreeRespVO>> getUserManagementRelationTree() {
-        return success(userManagementRelationService.getRelationTree());
+    public CommonResult<List<UserManagementRelationTreeRespVO>> getUserManagementRelationTree(@Validated UserManagementRelationQueryReqVO reqVO) {
+        return success(userManagementRelationService.getRelationTree(reqVO));
     }
 
 
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/vo/userManagementRelation/UserManagementRelationQueryReqVO.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/vo/userManagementRelation/UserManagementRelationQueryReqVO.java
index a15b85d..aaef318 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/vo/userManagementRelation/UserManagementRelationQueryReqVO.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/controller/admin/user/vo/userManagementRelation/UserManagementRelationQueryReqVO.java
@@ -13,4 +13,9 @@ public class UserManagementRelationQueryReqVO {
     @Schema(description = "被管理用户ID", example = "2")
     private Long subordinateUserId;
 
+    @Schema(description = "访问是否来自user/index组件", example = "true/false")
+    private Boolean fromUserIndex;
+
+    @Schema(description = "所选中的部门id", example = "100（灿能电力的部门id）")
+    private Long deptId;
 }
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserService.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserService.java
index effaeaf..4d1bf31 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserService.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserService.java
@@ -235,4 +235,11 @@ public interface AdminUserService {
      */
     boolean isUserAvailable(AdminUserDO user);
 
+    /**
+     * 通过部门ID查询该部门及以下部门的所有用户
+     *
+     * @param deptId 部门ID
+     * @return 用户列表
+     */
+    List<AdminUserDO> getAllUserByDeptId(Long deptId);
 }
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserServiceImpl.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserServiceImpl.java
index b6ec4ab..ebd29ad 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserServiceImpl.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/AdminUserServiceImpl.java
@@ -39,36 +39,13 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.time.LocalDateTime;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import static com.njcn.rdms.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static com.njcn.rdms.framework.common.util.collection.CollectionUtils.singleton;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_EMAIL_EXISTS;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_IMPORT_INIT_PASSWORD;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_IMPORT_LIST_IS_EMPTY;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_IS_DISABLE;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_IS_RESIGNED;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_MOBILE_EXISTS;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_NOT_EXISTS;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_PASSWORD_FAILED;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_REGISTER_DISABLED;
-import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.USER_USERNAME_EXISTS;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_CREATE_SUB_TYPE;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_CREATE_SUCCESS;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_DELETE_SUB_TYPE;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_DELETE_SUCCESS;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_TYPE;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_UPDATE_PASSWORD_SUB_TYPE;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_UPDATE_PASSWORD_SUCCESS;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_UPDATE_SUB_TYPE;
-import static com.njcn.rdms.module.system.enums.LogRecordConstants.SYSTEM_USER_UPDATE_SUCCESS;
+import static com.njcn.rdms.module.system.enums.ErrorCodeConstants.*;
+import static com.njcn.rdms.module.system.enums.LogRecordConstants.*;
 
 /**
  * 后台用户 Service 实现类
@@ -97,6 +74,8 @@ public class AdminUserServiceImpl implements AdminUserService {
     private OAuth2TokenService oauth2TokenService;
     @Resource
     private ConfigService configService;
+    @Resource
+    private UserManagementRelationService userManagementRelationService;
 
     @Override
     @Transactional(rollbackFor = Exception.class)
@@ -218,6 +197,12 @@ public class AdminUserServiceImpl implements AdminUserService {
         // 1. 校验用户存在
         AdminUserDO user = validateUserExists(id);
         // 2. 删除用户及其关联数据
+        // 2.1 删除前判断带人关系表是否还在用该用户
+        Boolean res = userManagementRelationService.hasRelation(id);
+        if (res) {
+            throw exception(USER_MANAGEMENT_RELATION_EXISTS);
+        }
+        // 2.2 确认用户关系表中没使用该用户可继续往下执行
         userMapper.deleteById(id);
         permissionService.processUserDeleted(id);
         oauth2TokenService.removeAccessToken(id, UserTypeEnum.ADMIN.getValue());
@@ -228,6 +213,13 @@ public class AdminUserServiceImpl implements AdminUserService {
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void deleteUserList(List<Long> ids) {
+        //批量删除前查看是否带人关系表还在使用该用户
+        for (Long id : ids){
+            Boolean res = userManagementRelationService.hasRelation(id);
+            if (res) {
+                throw exception(USER_MANAGEMENT_RELATION_EXISTS);
+            }
+        }
         // 1. 批量删除用户
         userMapper.deleteByIds(ids);
         // 2. 批量删除用户关联数据
@@ -504,6 +496,12 @@ public class AdminUserServiceImpl implements AdminUserService {
                 && !isUserResigned(user);
     }
 
+    @Override
+    public List<AdminUserDO> getAllUserByDeptId(Long deptId) {
+        Set<Long> deptCondition = getDeptCondition(deptId);
+        return getUserListByDeptIds(deptCondition);
+    }
+
     /**
      * 对密码进行加密
      *
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationService.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationService.java
index e3b4540..ef1bf42 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationService.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationService.java
@@ -97,7 +97,7 @@ public interface UserManagementRelationService {
      *
      * @return 用户带人关系树形列表
      */
-    List<UserManagementRelationTreeRespVO> getRelationTree();
+    List<UserManagementRelationTreeRespVO> getRelationTree(UserManagementRelationQueryReqVO reqVO);
 
     /**
      * 获得用户带人关系 Map
@@ -112,4 +112,14 @@ public interface UserManagementRelationService {
         return CollectionUtils.convertMap(getRelationList(ids), UserManagementRelationDO::getId);
     }
 
+    /**
+     * 通过某个用户的id，判断带人关系表中是否有该用户的记录
+     * 判断原则：
+     *   --管理者ID或被管理者ID有一个字段的值等于用户id，且该记录没有被逻辑删除
+     *   --则认为带人关系表中还在使用该用户
+     *
+     * @param userId 用户id
+     * @return true:有该用户的记录，false:没有该用户的记录
+     */
+    Boolean hasRelation(Long userId);
 }
diff --git a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationServiceImpl.java b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationServiceImpl.java
index 7d4db40..27f80d4 100644
--- a/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationServiceImpl.java
+++ b/rdms-system/rdms-system-boot/src/main/java/com/njcn/rdms/module/system/service/user/UserManagementRelationServiceImpl.java
@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.google.common.annotations.VisibleForTesting;
 import com.njcn.rdms.framework.common.exception.ServiceException;
 import com.njcn.rdms.framework.common.util.object.BeanUtils;
+import com.njcn.rdms.framework.mybatis.core.query.LambdaQueryWrapperX;
 import com.njcn.rdms.module.system.controller.admin.user.vo.userManagementRelation.UserManagementRelationQueryReqVO;
 import com.njcn.rdms.module.system.controller.admin.user.vo.userManagementRelation.UserManagementRelationSaveReqVO;
 import com.njcn.rdms.module.system.controller.admin.user.vo.userManagementRelation.UserManagementRelationTreeRespVO;
@@ -46,6 +47,9 @@ public class UserManagementRelationServiceImpl implements UserManagementRelation
     @Resource
     private AdminUserMapper adminUserMapper;
 
+    @Resource
+    private AdminUserService adminUserService;
+
     /**
      * 树形结构构建上下文
      * 包含构建树形结构所需的所有基础数据
@@ -232,7 +236,7 @@ public class UserManagementRelationServiceImpl implements UserManagementRelation
      */
     @Override
     public List<UserManagementRelationTreeRespVO> getRelationQuery(UserManagementRelationQueryReqVO reqVO) {
-        TreeBuildContext context = buildTreeContext();
+        TreeBuildContext context = buildTreeContext(reqVO);
         if (context == null) {
             return Collections.emptyList();
         }
@@ -284,26 +288,60 @@ public class UserManagementRelationServiceImpl implements UserManagementRelation
      * @return 用户带人关系树形结构列表
      */
     @Override
-    public List<UserManagementRelationTreeRespVO> getRelationTree() {
-        TreeBuildContext context = buildTreeContext();
+    public List<UserManagementRelationTreeRespVO> getRelationTree(UserManagementRelationQueryReqVO reqVO) {
+        TreeBuildContext context = buildTreeContext(reqVO);
         if (context == null) {
             return Collections.emptyList();
         }
         return buildFullTree(context);
     }
 
+    /**
+     * 通过某个用户的id，判断带人关系表中是否有该用户的记录
+     * 判断原则：
+     * --管理者ID或被管理者ID有一个字段的值等于用户id，且该记录没有被逻辑删除
+     * --则认为带人关系表中还在使用该用户
+     *
+     * @param userId 用户id
+     * @return true:有该用户的记录，false:没有该用户的记录
+     */
+    @Override
+    public Boolean hasRelation(Long userId) {
+        if (userId == null) {
+            return false;
+        }
+        LambdaQueryWrapperX<UserManagementRelationDO> wrapper = new LambdaQueryWrapperX<>();
+        wrapper.eq(UserManagementRelationDO::getManagerUserId, userId)
+                .or()
+                .eq(UserManagementRelationDO::getSubordinateUserId, userId);
+        return userManagementRelationMapper.selectCount(wrapper) > 0;
+    }
+
     /**
      * 构建树形结构上下文
      * 查询并组装构建树形结构所需的所有基础数据
      *
+     * @param reqVO 查询条件VO，包含fromUserIndex和deptId
      * @return 树形结构上下文，如果没有数据则返回null
      */
-    private TreeBuildContext buildTreeContext() {
+    private TreeBuildContext buildTreeContext(UserManagementRelationQueryReqVO reqVO) {
         List<UserManagementRelationDO> allRelations = userManagementRelationMapper.selectList(new UserManagementRelationQueryReqVO());
         if (CollUtil.isEmpty(allRelations)) {
             return null;
         }
 
+        if (Boolean.TRUE.equals(reqVO.getFromUserIndex()) && reqVO.getDeptId() != null && reqVO.getDeptId() != 100L) {
+            List<AdminUserDO> deptUsers = adminUserService.getAllUserByDeptId(reqVO.getDeptId());
+            Set<Long> deptUserIds = deptUsers.stream().map(AdminUserDO::getId).collect(Collectors.toSet());
+            allRelations = allRelations.stream()
+                    .filter(relation -> deptUserIds.contains(relation.getManagerUserId())
+                            && deptUserIds.contains(relation.getSubordinateUserId()))
+                    .collect(Collectors.toList());
+            if (CollUtil.isEmpty(allRelations)) {
+                return null;
+            }
+        }
+
         Set<Long> allUserIds = new HashSet<>();
         for (UserManagementRelationDO relation : allRelations) {
             allUserIds.add(relation.getManagerUserId());