diff --git a/project/src/main/java/com/sdm/project/service/impl/ProjectServiceImpl.java b/project/src/main/java/com/sdm/project/service/impl/ProjectServiceImpl.java
index cda96139..7bc2601f 100644
--- a/project/src/main/java/com/sdm/project/service/impl/ProjectServiceImpl.java
+++ b/project/src/main/java/com/sdm/project/service/impl/ProjectServiceImpl.java
@@ -690,6 +690,16 @@ public class ProjectServiceImpl extends BaseService implements IProjectService {
         return SdmResponse.success(realTopProjectNodeList.stream().flatMap(item -> item.getChildren().stream().filter(Objects::nonNull)).toList());
     }
 
+    public static boolean isInteger(String str) {
+        if (str == null || str.trim().isEmpty()) return false;
+        try {
+            Long.parseLong(str); // 支持前导零
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
     public void sortWorkspaceNode(ProjectNodePo projectNodePo) {
         List<NodeAllBase> children = projectNodePo.getChildren();
         if (CollectionUtils.isEmpty(children)) {
@@ -709,7 +719,7 @@ public class ProjectServiceImpl extends BaseService implements IProjectService {
             String[] workspaceNode1 = o1.getNodeCode().split("-");
             String[] workspaceNode2 = o2.getNodeCode().split("-");
 
-            if (o1.getNodeCode().contains("-M") || o2.getNodeCode().contains("-M")) {
+            if (!isInteger(o1.getNodeCode()) || !isInteger(o2.getNodeCode())) {
                 return 0;
             }