diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java b/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
index 1d12b4c..bab2441 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
@@ -1091,6 +1091,22 @@ public class TodoCenterManage {
         project.setUpdateOn(LocalDateTime.now());
         projectService.save(project);
 
+        ProjectInst oldInst = projectInstService.getOne(Wrappers.lambdaUpdate(ProjectInst.class)
+                .eq(ProjectInst::getProjectId, oldProject.getId())
+                .eq(ProjectInst::getInstCode, oldProject.getInstCode()));
+
+        String instCode = oldProject.getInstCode();
+        oldInst.setInstCode("EMPTY");
+        projectInstService.updateById(oldInst);
+
+        ProjectInst newPi = new ProjectInst();
+        newPi.setProjectId(project.getId());
+        newPi.setInstType(oldInst.getInstType());
+        newPi.setInstCode(instCode);
+        newPi.setCreatOn(LocalDateTime.now());
+        newPi.setUpdateOn(LocalDateTime.now());
+        projectInstService.save(newPi);
+
         projectService.update(Wrappers.lambdaUpdate(Project.class)
                 .set(Project::getNewest,Boolean.FALSE)
                 .ne(Project::getId,project.getId())
@@ -1101,7 +1117,6 @@ public class TodoCenterManage {
                 ? Boolean.TRUE : Boolean.FALSE;
         Long projectDtoId = projectDto.getId();
         Project projectInfo = projectService.getById(projectDtoId);
-        String instCode = projectInfo.getInstCode();
         ProjectInst projectInst = projectInstService.getOne(Wrappers.lambdaQuery(ProjectInst.class).eq(ProjectInst::getInstCode, instCode));
         Integer instType = projectInst.getInstType();