diff --git a/lzbi-system/src/main/java/com/lzbi/system/service/impl/SysDeptServiceImpl.java b/lzbi-system/src/main/java/com/lzbi/system/service/impl/SysDeptServiceImpl.java
index e11bad3..39d0b03 100644
--- a/lzbi-system/src/main/java/com/lzbi/system/service/impl/SysDeptServiceImpl.java
+++ b/lzbi-system/src/main/java/com/lzbi/system/service/impl/SysDeptServiceImpl.java
@@ -322,6 +322,9 @@ public class SysDeptServiceImpl implements ISysDeptService {
      * @param oldAncestors 旧的父ID集合
      */
     public void updateDeptChildren(Long deptId, String newAncestors, String oldAncestors, String newAllName, String oldAllName) {
+        if (null == oldAllName) {
+            oldAllName = "";
+        }
         List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
         for (SysDept child : children) {
             child.setAncestors(child.getAncestors().replaceFirst(oldAncestors, newAncestors));
@@ -341,6 +344,9 @@ public class SysDeptServiceImpl implements ISysDeptService {
      * @param newAllName 新的父ID集合
      */
     public void updateDeptChildrenNew(Long deptId, String newAllName, String oldAllName) {
+        if (null == oldAllName) {
+            oldAllName = "";
+        }
         List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
         for (SysDept child : children) {
             if (!StringUtils.isEmpty(child.getAllName())) {