diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/DeptServiceImpl.java b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/DeptServiceImpl.java
index 400021df..6e560f69 100644
--- a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/DeptServiceImpl.java
+++ b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/DeptServiceImpl.java
@@ -258,7 +258,7 @@ public class DeptServiceImpl implements DeptService {
         for (DeptDto deptDto : list) {
             boolean flag = true;
             for (DeptDto dto : list) {
-                if (deptDto.getPid().equals(dto.getId())) {
+                if (deptDto.getPid()!= null && deptDto.getPid().equals(dto.getId())) {
                     flag = false;
                     break;
                 }