diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/Ask/Views/Ask_MainOfTeacher/Form.js b/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/Ask/Views/Ask_MainOfTeacher/Form.js
index 84c92bf26..d7a922a8b 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/Ask/Views/Ask_MainOfTeacher/Form.js	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/Ask/Views/Ask_MainOfTeacher/Form.js	
@@ -59,6 +59,9 @@ var bootstrap = function ($, learun) {
             return false;
         }
         $("#DepartmentIdsName").val($("#DepartmentIds").find(".lr-select-placeholder").text());
+        if ($("#DepartmentIdsName").val() == "==请选择==") {
+            $("#DepartmentIdsName").val("");
+        }
         var postData = {
             strEntity: JSON.stringify($('body').lrGetFormData())
         };