diff --git a/business/jxstore/cms/user.go b/business/jxstore/cms/user.go
index 87cc52d3e..b813b6ecc 100644
--- a/business/jxstore/cms/user.go
+++ b/business/jxstore/cms/user.go
@@ -72,8 +72,9 @@ func BindMobile2Store(mobile string, storeID int) (num int64, err error) {
 		if err == nil {
 			num, err = dao.UpdateEntity(db, user, "JxStoreID")
 		} else {
-			err = dao.CreateEntity(db, user)
-			num = 1
+			if err = createUserAndSetOpenIDNull(db, user); err == nil {
+				num = 1
+			}
 		}
 	}
 	return num, err
@@ -93,8 +94,9 @@ func AddMobile2Mobile(parentMobile, mobile string) (num int64, err error) {
 					if err == nil {
 						num, err = dao.UpdateEntity(db, user, "ParentID")
 					} else {
-						err = dao.CreateEntity(db, user)
-						num = 1
+						if err = createUserAndSetOpenIDNull(db, user); err == nil {
+							num = 1
+						}
 					}
 				}
 			}
@@ -140,3 +142,17 @@ func verifyMobileHasNoMembers(db *dao.DaoDB, mobile string) (err error) {
 	}
 	return err
 }
+
+func createUserAndSetOpenIDNull(db *dao.DaoDB, user *model.WeiXins) (err error) {
+	dao.Begin(db)
+	if err = dao.CreateEntity(db, user); err != nil {
+		dao.Rollback(db)
+		return err
+	}
+	if _, err = dao.ExecuteSQL(db, "UPDATE weixins SET openid = NULL WHERE mobile = ?", user.Tel); err != nil {
+		dao.Rollback(db)
+		return err
+	}
+	dao.Commit(db)
+	return err
+}