diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDataScopeServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDataScopeServiceImpl.java
index 470646f35..d15ad207b 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDataScopeServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDataScopeServiceImpl.java
@@ -60,7 +60,7 @@ public class SysDataScopeServiceImpl implements ISysDataScopeService {
      * @param deptId 部门Id
      * @return 部门Id组
      */
-    @Cacheable(cacheNames = CacheNames.SYS_DEPT_AND_CHILD, key = "#deptId")
+    @Cacheable(cacheNames = CacheNames.SYS_DEPT_AND_CHILD, key = "#deptId", condition = "#deptId != null")
     @Override
     public String getDeptAndChild(Long deptId) {
         if (ObjectUtil.isNull(deptId)) {