diff --git a/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java b/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java
index 5165fbe4..69c5c824 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java
@@ -71,7 +71,7 @@ public class WorkflowDefinitionServiceImpl extends BaseServiceImpl<WorkflowDefin
     @Transactional(rollbackFor = Exception.class)
     public WorkflowDefinitionDTO saveWorkflowDesign(WorkflowDefinitionDTO dto) throws Exception {
         // 转换图形JSON为BPMN XML
-        String bpmnXml = bpmnConverter.convertToBpmnXml(dto.getGraphJson(), dto.getKey());
+        String bpmnXml = bpmnConverter.convertToBpmnXml(dto.getGraphConfig().toString(), dto.getKey());
 
         dto.setFlowVersion(1);
         dto.setBpmnXml(bpmnXml);