diff --git a/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseMinderService.java b/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseMinderService.java
index 5e3b0ae2af..0b2985a2f8 100644
--- a/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseMinderService.java
+++ b/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseMinderService.java
@@ -777,12 +777,12 @@ public class FunctionalCaseMinderService {
     private MindAdditionalNode updateNode(String userId, MindAdditionalNodeRequest mindAdditionalNodeRequest, MindAdditionalNodeMapper mindAdditionalNodeMapper) {
         MindAdditionalNode mindAdditionalNode = new MindAdditionalNode();
         mindAdditionalNode.setId(mindAdditionalNodeRequest.getId());
-        if (mindAdditionalNodeRequest.getName().length() > 255) {
-            mindAdditionalNodeRequest.setName(mindAdditionalNodeRequest.getName().substring(0, 249));
-        }
         if (StringUtils.isBlank(mindAdditionalNodeRequest.getName())) {
             throw new MSException(Translator.get("minder_extra_node.text_node_empty"));
         }
+        if (mindAdditionalNodeRequest.getName().length() > 255) {
+            mindAdditionalNodeRequest.setName(mindAdditionalNodeRequest.getName().substring(0, 249));
+        }
         mindAdditionalNode.setName(mindAdditionalNodeRequest.getName());
         mindAdditionalNode.setParentId(mindAdditionalNodeRequest.getParentId());
         mindAdditionalNode.setUpdateTime(System.currentTimeMillis());
@@ -795,12 +795,12 @@ public class FunctionalCaseMinderService {
     private MindAdditionalNode buildNode(FunctionalCaseMinderEditRequest request, String userId, MindAdditionalNodeRequest mindAdditionalNodeRequest, MindAdditionalNodeMapper additionalNodeMapper) {
         MindAdditionalNode mindAdditionalNode = new MindAdditionalNode();
         mindAdditionalNode.setId(mindAdditionalNodeRequest.getId());
-        if (mindAdditionalNodeRequest.getName().length() > 255) {
-            mindAdditionalNodeRequest.setName(mindAdditionalNodeRequest.getName().substring(0, 249));
-        }
         if (StringUtils.isBlank(mindAdditionalNodeRequest.getName())) {
             throw new MSException(Translator.get("minder_extra_node.text_node_empty"));
         }
+        if (mindAdditionalNodeRequest.getName().length() > 255) {
+            mindAdditionalNodeRequest.setName(mindAdditionalNodeRequest.getName().substring(0, 249));
+        }
         mindAdditionalNode.setName(mindAdditionalNodeRequest.getName());
         mindAdditionalNode.setParentId(mindAdditionalNodeRequest.getParentId());
         mindAdditionalNode.setProjectId(request.getProjectId());