diff --git a/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java b/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java
index 83184e34..a0120d11 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/standard/controller/LawsPartNameController.java
@@ -3,7 +3,6 @@ package com.jero.modules.laws.standard.controller;
 import com.jero.common.api.vo.Result;
 import com.jero.common.aspect.annotation.AutoLog;
 import com.jero.modules.laws.standard.entity.PartName;
-import com.jero.modules.laws.standard.entity.TreePage;
 import com.jero.modules.laws.standard.service.ILawsPartNameService;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
@@ -31,17 +30,8 @@ public class LawsPartNameController {
     @AutoLog(value = "企业标准-零部件树")
     @ApiOperation(value = "企业标准-零部件树", notes = "企业标准-零部件树")
     @GetMapping("/")
-    public Result<TreePage<PartName>> queryENTreeList(
-            @RequestParam(name = "nodeName", required = false, defaultValue = "") @ApiParam("一级节点名称") String nodeName,
-            @RequestParam(name = "pageNo", defaultValue = "1") @ApiParam("页码") Integer pageNo,
-            @RequestParam(name = "pageSize", defaultValue = "10") @ApiParam("页面大小") Integer pageSize) {
-        if (pageNo == null) {
-            pageNo = 1;
-        }
-        if (pageSize == null) {
-            pageSize = 5;
-        }
-        TreePage<PartName> list = IPartNameService.queryTreeList(nodeName, pageNo, pageSize);
+    public Result<List<PartName>> queryENTreeList() {
+        List<PartName> list = IPartNameService.queryTreeList();
         return Result.OK(list);
     }
 
diff --git a/laws-modules/src/main/java/com/jero/modules/laws/standard/service/ILawsPartNameService.java b/laws-modules/src/main/java/com/jero/modules/laws/standard/service/ILawsPartNameService.java
index b93981de..6f271979 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/standard/service/ILawsPartNameService.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/standard/service/ILawsPartNameService.java
@@ -2,7 +2,6 @@ package com.jero.modules.laws.standard.service;
 
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.jero.modules.laws.standard.entity.PartName;
-import com.jero.modules.laws.standard.entity.TreePage;
 
 import java.util.List;
 
@@ -16,13 +15,9 @@ public interface ILawsPartNameService extends IService<PartName> {
     /**
      * 查询零部件树
      *
-     * @param nodeName 节点名称
-     * @param pageNo 页码
-     * @param pageSize 页面大小
      * @return 零部件树
      */
-    @Deprecated
-    TreePage<PartName> queryTreeList(String nodeName, Integer pageNo, Integer pageSize);
+    List<PartName> queryTreeList();
 
     /**
      * 零部件树选中回显
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 de3b6504..3ee98d29 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
@@ -3,10 +3,8 @@ package com.jero.modules.laws.standard.service.impl;
 import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-import com.jero.common.constant.enums.YesOrNoEnum;
 import com.jero.common.exception.JeroBootException;
 import com.jero.modules.laws.standard.entity.PartName;
-import com.jero.modules.laws.standard.entity.TreePage;
 import com.jero.modules.laws.standard.mapper.PartNameMapper;
 import com.jero.modules.laws.standard.service.ILawsPartNameService;
 import org.springframework.stereotype.Service;
@@ -33,54 +31,10 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
     private PartNameMapper partNameMapper;
 
     @Override
-    public TreePage<PartName> queryTreeList(String nodeName, Integer pageNo, Integer pageSize) {
-        LambdaQueryWrapper<PartName> queryWrapper = new LambdaQueryWrapper<>();
-        List<PartName> topLevelNodes;
-        queryWrapper.eq(PartName::getDelFlag, YesOrNoEnum.NO.getValue())
-                .like(StrUtil.isNotBlank(nodeName), PartName::getName, nodeName);
-        List<PartName> allNodes = partNameMapper.selectList(queryWrapper);
-        List<String> firstNodeCodeList = allNodes.stream()
-                .map(PartName::getFirstNode)
-                .distinct()
-                .collect(Collectors.toList());
-        // 不做筛选的时候查询加速
-        if (StrUtil.isBlank(nodeName)) {
-            // 构建树结构
-            topLevelNodes = this.buildTree(allNodes);
-        } else {
-            // 做筛选的时候需要自己组树
-            queryWrapper.clear();
-            queryWrapper.eq(PartName::getDelFlag, YesOrNoEnum.NO.getValue())
-                    .in(PartName::getFirstNode, firstNodeCodeList)
-                    .or().in(PartName::getCode, firstNodeCodeList);
-            List<PartName> allNodeList = partNameMapper.selectList(queryWrapper);
-
-            // 构建树形结构
-            Set<PartName> nodesSet = new HashSet<>();
-            for (PartName node : allNodes) {
-                nodesSet.addAll(findPathToRoot(allNodeList, node));
-                nodesSet.addAll(findAllChildren(allNodeList, node));
-            }
-            topLevelNodes = this.buildTree(nodesSet);
-        }
-
-        if (!topLevelNodes.isEmpty()) {
-            if (topLevelNodes.get(0).getParentCode().equals("0")) {
-                topLevelNodes = topLevelNodes.get(0).getChildPartNameList();
-            }
-        }
-        // 实现分页逻辑
-        int start = (pageNo - 1) * pageSize;
-        int end = Math.min(start + pageSize, topLevelNodes.size());
-        List<PartName> pageData = topLevelNodes.subList(start, end);
-
-        // 封装分页信息
-        TreePage<PartName> result = new TreePage<>();
-        result.setRecords(pageData);
-        result.setTotal(topLevelNodes.size());
-        result.setSize(pageSize);
-        result.setCurrent(pageNo);
-        return result;
+    public List<PartName> queryTreeList() {
+        List<PartName> allNodes = list();
+        // 构建完整的树形结构
+        return buildTree(new HashSet<>(allNodes)); // 直接返回构建的树形列表
     }
 
     private List<PartName> buildTree(Collection<PartName> nodesCollection) {
@@ -103,6 +57,8 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
         for (PartName node : nodesCollection) {
             node.setLeafFlag(node.getChildPartNameList() == null || node.getChildPartNameList().isEmpty());
         }
+        // 排序
+        topLevelNodes.sort(Comparator.comparing(PartName::getName));
         return topLevelNodes;
     }
 
@@ -185,13 +141,16 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
 
     @Override
     public List<PartName> queryList(String nodeName) {
-        // 查询所有节点并建立父节点映射
+        // 查询所有节点
         LambdaQueryWrapper<PartName> queryWrapper = new LambdaQueryWrapper<>();
         List<PartName> allNodes = list(queryWrapper);
-        Map<String, PartName> nodeMap = allNodes.stream()
-                .collect(Collectors.toMap(PartName::getCode, node -> node));
 
         // 通过 nodeName 过滤符合条件的节点
+        Map<String, PartName> nodeMap = allNodes.parallelStream()
+                .collect(Collectors.toConcurrentMap(PartName::getCode, Function.identity()));
+        Map<String, List<PartName>> parentChildMap = allNodes.parallelStream()
+                .collect(Collectors.groupingByConcurrent(PartName::getParentCode));
+
         List<PartName> matchedNodes = allNodes.parallelStream()
                 .filter(node -> node.getName() != null && node.getName().contains(nodeName))
                 .collect(Collectors.toList());
@@ -200,13 +159,11 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
             return Collections.emptyList();
         }
 
-        // 用于存储一级节点
+        // 查找每个匹配节点的一级父节点
         Set<PartName> rootNodes = ConcurrentHashMap.newKeySet();
-
-        // 并行查找每个匹配节点的一级父节点
         matchedNodes.parallelStream().forEach(matchedNode -> {
             PartName currentNode = matchedNode;
-            while (currentNode != null && !"Part".equals(currentNode.getParentCode())) {
+            while (currentNode != null && !currentNode.getParentCode().equals("Part")) {
                 currentNode = nodeMap.get(currentNode.getParentCode());
             }
             if (currentNode != null) {
@@ -214,34 +171,27 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
             }
         });
 
-        // 并行设置叶子标志
-        rootNodes.parallelStream().forEach(node -> {
-            Set<String> descendantCodes = getAllDescendantCodes(node.getCode(), nodeMap);
-            boolean isLeaf = matchedNodes.stream()
-                    .noneMatch(matchedNode -> descendantCodes.contains(matchedNode.getCode()));
-            node.setLeafFlag(isLeaf);
+        // 设置叶子标志
+        rootNodes.parallelStream().forEach(rootNode -> {
+            List<PartName> children = parentChildMap.get(rootNode.getCode());
+            rootNode.setLeafFlag(children == null || children.isEmpty());
         });
 
-        // 按名字排序
         return rootNodes.stream()
                 .sorted(Comparator.comparing(PartName::getName))
                 .collect(Collectors.toList());
     }
 
     // 方法：获取给定节点ID的所有子孙节点ID
-    private Set<String> getAllDescendantCodes(String parentCode, Map<String, PartName> nodeMap) {
+    private Set<String> getAllDescendantCodes(String parentCode, List<PartName> allNodes) {
         Set<String> descendantCodes = new HashSet<>();
-        Deque<String> stack = new ArrayDeque<>();
-        stack.push(parentCode);
+        List<PartName> directChildren = allNodes.stream()
+                .filter(node -> node.getParentCode().equals(parentCode))
+                .collect(Collectors.toList());
 
-        while (!stack.isEmpty()) {
-            String currentCode = stack.pop();
-            nodeMap.values().parallelStream()
-                    .filter(node -> node.getParentCode().equals(currentCode))
-                    .forEach(child -> {
-                        descendantCodes.add(child.getCode());
-                        stack.push(child.getCode());
-                    });
+        for (PartName child : directChildren) {
+            descendantCodes.add(child.getCode());
+            descendantCodes.addAll(getAllDescendantCodes(child.getCode(), allNodes)); // 递归获取子孙节点
         }
 
         return descendantCodes;
@@ -249,13 +199,17 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
 
     @Override
     public List<PartName> getChild(String parentCode, String nodeName) {
-        // 查询所有节点并建立父节点映射
+        // 查询所有节点
         LambdaQueryWrapper<PartName> queryWrapper = new LambdaQueryWrapper<>();
         List<PartName> allNodes = list(queryWrapper);
-        Map<String, PartName> nodeMap = allNodes.stream()
-                .collect(Collectors.toMap(PartName::getCode, node -> node));
 
-        // 通过 nodeName 过滤符合条件的节点
+        // 构建节点映射，以及父子关系映射
+        Map<String, PartName> nodeMap = allNodes.parallelStream()
+                .collect(Collectors.toConcurrentMap(PartName::getCode, Function.identity()));
+        Map<String, List<PartName>> parentChildMap = allNodes.parallelStream()
+                .collect(Collectors.groupingByConcurrent(PartName::getParentCode));
+
+        // 过滤符合条件的节点
         List<PartName> matchedNodes = allNodes.parallelStream()
                 .filter(node -> node.getName() != null && node.getName().contains(nodeName))
                 .collect(Collectors.toList());
@@ -264,13 +218,11 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
             return Collections.emptyList();
         }
 
-        // 用于存储一级节点
+        // 查找每个匹配节点的一级父节点
         Set<PartName> rootNodes = ConcurrentHashMap.newKeySet();
-
-        // 并行查找每个匹配节点的一级父节点
         matchedNodes.parallelStream().forEach(matchedNode -> {
             PartName currentNode = matchedNode;
-            while (currentNode != null && !parentCode.equals(currentNode.getParentCode())) {
+            while (currentNode != null && !currentNode.getParentCode().equals(parentCode)) {
                 currentNode = nodeMap.get(currentNode.getParentCode());
             }
             if (currentNode != null) {
@@ -278,12 +230,10 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
             }
         });
 
-        // 并行设置叶子标志
-        rootNodes.parallelStream().forEach(node -> {
-            boolean isLeaf = matchedNodes.stream()
-                    .noneMatch(n -> parentCode.equals(n.getParentCode()) &&
-                            n.getParentCode().equals(node.getCode()));
-            node.setLeafFlag(isLeaf);
+        // 设置叶子标志
+        rootNodes.parallelStream().forEach(rootNode -> {
+            List<PartName> children = parentChildMap.get(rootNode.getCode());
+            rootNode.setLeafFlag(children == null || children.isEmpty());
         });
 
         // 按名字排序
@@ -292,6 +242,7 @@ public class PartNameServiceImpl extends ServiceImpl<PartNameMapper, PartName>
                 .collect(Collectors.toList());
     }
 
+
     private PartName getFirstLevelNode(PartName node, Map<String, PartName> nodeMap) {
         if (node.getParentCode().equals("Part")) {
             return node;