diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/AloneExamExtendApi.java b/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/AloneExamExtendApi.java
index cf01f5e6..c73b6a7a 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/AloneExamExtendApi.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/AloneExamExtendApi.java
@@ -25,7 +25,7 @@ public class AloneExamExtendApi extends ApiBaseController {
     IAloneExamService aloneExamService;
 
     /**
-     * 添加考试任务，针对单个用户
+     * 添加考试任务，针对单个用户.如果已经存在，就会返回已存在的
      * */
     @PostMapping("/save")
     public JsonResponse<AloneExam> save(@RequestBody AloneExam aloneExam){
@@ -42,6 +42,11 @@ public class AloneExamExtendApi extends ApiBaseController {
             return badRequest("缺少关联类型");
         }
         try {
+        	//检查，一个用户，一个考试 只能有一个考试 任务
+        	AloneExam has =aloneExamService.getAloneByAidAndTestId(aloneExam.getAid(), aloneExam.getTestId());
+        	if(has!=null) {
+        		return success(has);
+        	}
             aloneExamService.save(aloneExam);
             return success(aloneExam);
         } catch (Exception e) {