diff --git a/tall/src/main/java/com/ccsens/tall/service/ProTaskDetailService.java b/tall/src/main/java/com/ccsens/tall/service/ProTaskDetailService.java
index b05f455b..0f3f782a 100644
--- a/tall/src/main/java/com/ccsens/tall/service/ProTaskDetailService.java
+++ b/tall/src/main/java/com/ccsens/tall/service/ProTaskDetailService.java
@@ -1501,7 +1501,7 @@ public class ProTaskDetailService implements IProTaskDetailService {
                                 ProTaskDetailExample proTaskDetailExample = new ProTaskDetailExample();
                                 proTaskDetailExample.createCriteria().andIdEqualTo(updateTaskInfo.getParentId()).andProjectIdEqualTo(updateTaskInfo.getProjectId());
                                 long l = taskDetailDao.countByExample(proTaskDetailExample);
-                                if(l > 0 ){
+                                if(l < 0 ){
                                     throw new BaseException(CodeEnum.NOT_TASK);
                                 }else { //在的话则修改项目信息
                                     taskDetail.setId(updateTaskInfo.getId());