diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysDeptServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysDeptServiceImpl.java
index 4d39778..31c670c 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysDeptServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysDeptServiceImpl.java
@@ -192,6 +192,7 @@ public class SysDeptServiceImpl implements ISysDeptService, DeptService {
         boolean exist = baseMapper.exists(new LambdaQueryWrapper<SysDept>()
             .eq(SysDept::getDeptName, dept.getDeptName())
             .eq(SysDept::getParentId, dept.getParentId())
+            .eq(SysDept::getTenantId, dept.getTenantId())
             .ne(ObjectUtil.isNotNull(dept.getDeptId()), SysDept::getDeptId, dept.getDeptId()));
         return !exist;
     }
@@ -221,12 +222,16 @@ public class SysDeptServiceImpl implements ISysDeptService, DeptService {
      */
     @Override
     public int insertDept(SysDept dept) {
-        SysDept info = baseMapper.selectById(dept.getParentId());
-        // 如果父节点不为正常状态,则不允许新增子节点
-        if (!UserConstants.DEPT_NORMAL.equals(info.getStatus())) {
-            throw new ServiceException("部门停用，不允许新增");
+        if(dept.getParentId()==0L){  //新增某公司顶级部门时
+            dept.setAncestors(dept.getParentId().toString());
+        }else{
+            SysDept info = baseMapper.selectById(dept.getParentId());
+            // 如果父节点不为正常状态,则不允许新增子节点
+            if (!UserConstants.DEPT_NORMAL.equals(info.getStatus())) {
+                throw new ServiceException("部门停用，不允许新增");
+            }
+            dept.setAncestors(info.getAncestors() + StringUtils.SEPARATOR + dept.getParentId());
         }
-        dept.setAncestors(info.getAncestors() + StringUtils.SEPARATOR + dept.getParentId());
         return baseMapper.insert(dept);
     }