diff --git a/laws-module-system/src/main/java/com/jero/modules/system/service/impl/SysDepartServiceImpl.java b/laws-module-system/src/main/java/com/jero/modules/system/service/impl/SysDepartServiceImpl.java
index 3f1932b8..c34113e8 100644
--- a/laws-module-system/src/main/java/com/jero/modules/system/service/impl/SysDepartServiceImpl.java
+++ b/laws-module-system/src/main/java/com/jero/modules/system/service/impl/SysDepartServiceImpl.java
@@ -1,33 +1,38 @@
 package com.jero.modules.system.service.impl;
 
-import java.util.*;
-
 import cn.hutool.core.util.StrUtil;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
-import com.jero.common.system.vo.SysDepartTreeModel;
-import com.jero.common.util.oConvertUtils;
-import org.apache.commons.lang3.StringUtils;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.jero.common.constant.CacheConstant;
 import com.jero.common.constant.CommonConstant;
 import com.jero.common.constant.FillRuleConstant;
+import com.jero.common.system.vo.SysDepartTreeModel;
 import com.jero.common.util.FillRuleUtil;
 import com.jero.common.util.YouBianCodeUtil;
-import com.jero.modules.system.entity.*;
-import com.jero.modules.system.mapper.*;
+import com.jero.common.util.oConvertUtils;
+import com.jero.modules.system.entity.SysDepart;
+import com.jero.modules.system.entity.SysDepartPermission;
+import com.jero.modules.system.entity.SysUser;
+import com.jero.modules.system.entity.SysUserDepart;
+import com.jero.modules.system.mapper.SysDepartMapper;
+import com.jero.modules.system.mapper.SysDepartPermissionMapper;
+import com.jero.modules.system.mapper.SysUserDepartMapper;
+import com.jero.modules.system.mapper.SysUserMapper;
 import com.jero.modules.system.model.DepartIdModel;
 import com.jero.modules.system.service.ISysDepartService;
 import com.jero.modules.system.util.FindsDepartsChildrenUtil;
+import io.netty.util.internal.StringUtil;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cache.annotation.Cacheable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
-import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
-import io.netty.util.internal.StringUtil;
+import java.util.*;
+import java.util.stream.Collectors;
 
 /**
  * <p>
@@ -236,7 +241,40 @@ public class SysDepartServiceImpl extends ServiceImpl<SysDepartMapper, SysDepart
 
 	@Override
 	public List<String> getSubDepIdsByDepId(String departId) {
-		return this.baseMapper.getSubDepIdsByDepId(departId);
+		// 获取所有有效部门
+		List<SysDepart> allDepartList = this.list(new LambdaQueryWrapper<SysDepart>()
+				.eq(SysDepart::getDelFlag, CommonConstant.DEL_FLAG_0)
+				.eq(SysDepart::getStatus, CommonConstant.STATUS_1));
+
+		// 创建一个映射，用于存储每个部门及其子部门的列表
+		Map<String, List<String>> childrenMap = allDepartList.parallelStream()
+				.filter(depart -> depart.getParentId() != null && !depart.getParentId().isEmpty())
+				.collect(Collectors.groupingBy(SysDepart::getParentId,
+						Collectors.mapping(SysDepart::getId, Collectors.toList())));
+
+		// 使用递归方法来收集所有子部门的ID
+		List<String> subDepIds = Collections.synchronizedList(new ArrayList<>());
+		collectSubDepIds(departId, childrenMap, subDepIds);
+
+		return subDepIds;
+	}
+
+	/**
+	 * 递归方法用于收集子部门ID
+	 * @param departId 当前部门ID
+	 * @param childrenMap 子部门映射表
+	 * @param subDepIds 收集到的子部门ID列表
+	 */
+	private void collectSubDepIds(String departId, Map<String, List<String>> childrenMap, List<String> subDepIds) {
+		List<String> children = childrenMap.get(departId);
+		if (children != null) {
+			// 使用并行流处理子部门
+			children.parallelStream().forEach(childId -> {
+				subDepIds.add(childId);
+				// 递归调用，以收集当前子部门的子部门
+				collectSubDepIds(childId, childrenMap, subDepIds);
+			});
+		}
 	}
 
 	@Override