diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/projectdeclared/manage/DelayedApplyManage.java b/pmapi/src/main/java/com/ningdatech/pmapi/projectdeclared/manage/DelayedApplyManage.java
index 79079b6..7dc0458 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/projectdeclared/manage/DelayedApplyManage.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/projectdeclared/manage/DelayedApplyManage.java
@@ -139,7 +139,10 @@ public class DelayedApplyManage {
                     Integer.valueOf(w.getBuildCycle()) : null);
             item.setPlanAcceptanceTime(w.getPlanAcceptanceTime());
             // 判断当前项目是否已经开启了延期申请并且没有审批完成
-            String instCode = w.getInstCode();
+            ProjectDelayApply delayApply = projectDelayApplyService.getOne(Wrappers.lambdaQuery(ProjectDelayApply.class)
+                    .eq(ProjectDelayApply::getProjectId, w.getId())
+                    .last("limit 1"));
+            String instCode = delayApply.getInstanceId();
             // 获取流程通过后的流程实例
             HistoricProcessInstance newInstance = historyService.createHistoricProcessInstanceQuery()
                     .processInstanceId(instCode)