diff --git a/epmet-plugins-module/pli-power-base/pli-power-base-server/src/main/java/com/epmet/plugin/power/modules/axis/service/impl/PowerAxisStructServiceImpl.java b/epmet-plugins-module/pli-power-base/pli-power-base-server/src/main/java/com/epmet/plugin/power/modules/axis/service/impl/PowerAxisStructServiceImpl.java
index 67c41e1..3686754 100644
--- a/epmet-plugins-module/pli-power-base/pli-power-base-server/src/main/java/com/epmet/plugin/power/modules/axis/service/impl/PowerAxisStructServiceImpl.java
+++ b/epmet-plugins-module/pli-power-base/pli-power-base-server/src/main/java/com/epmet/plugin/power/modules/axis/service/impl/PowerAxisStructServiceImpl.java
@@ -149,7 +149,7 @@ public class PowerAxisStructServiceImpl extends BaseServiceImpl<PowerAxisStructD
             }
         } else {
             int parentStructLevel = powerAxisTagService.selectStructLevelById(customerId, PowerTagCategoryEnum.STRUCT.category(), structDto.getPid());
-            if (parentStructLevel - structLevel > NumConstant.ONE) {
+            if (structLevel - parentStructLevel > NumConstant.ONE) {
                 throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "无法跨级添加节点");
             }
         }