diff --git a/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/PartNameServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/PartNameServiceImpl.java
index 87d65dda..e8c68970 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/PartNameServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/PartNameServiceImpl.java
@@ -44,15 +44,15 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
 
         // 将所有节点转换为映射，以便快速查找
         Map<String, PartName> nodeMap = allNodes.stream()
-                .collect(Collectors.toMap(PartName::getId, Function.identity()));
+                .collect(Collectors.toMap(PartName::getCode, Function.identity()));
 
         // 构建树形结构
         List<PartName> topLevelNodes = new ArrayList<>();
         allNodes.forEach(node -> {
-            if (node.getParentId() == null) {
+            if (node.getParentCode().equals("Part")) {
                 topLevelNodes.add(node);
             } else {
-                PartName parentNode = nodeMap.get(node.getParentId());
+                PartName parentNode = nodeMap.get(node.getParentCode());
                 if (parentNode != null) {
                     if (parentNode.getChildPartNameList() == null) {
                         parentNode.setChildPartNameList(new ArrayList<>());