diff --git a/app/admin/svc/svc_data_statisstics.go b/app/admin/svc/svc_data_statisstics.go
index 2981019..2eb996f 100644
--- a/app/admin/svc/svc_data_statisstics.go
+++ b/app/admin/svc/svc_data_statisstics.go
@@ -391,7 +391,8 @@ func SelfSupportForSchoolDataStatisticsExport(req md.SelfSupportForSchoolDataSta
 		}
 
 		var m []*db.SelfSupportForSchoolOrdWithUserIdentityV2
-		sess := db.Db.Desc("self_support_for_school_ord.id").Where("self_support_for_school_ord.order_status =?", enum.SelfSupportForSchoolOrdOrderStatusForSuccess)
+		eg := db.Db
+		sess := eg.Desc("self_support_for_school_ord.id").Where("self_support_for_school_ord.order_status =?", enum.SelfSupportForSchoolOrdOrderStatusForSuccess)
 		if req.EnterpriseId != 0 {
 			sess.And("self_support_for_school_ord.enterprise_id =?", req.EnterpriseId)
 		}
@@ -417,7 +418,12 @@ func SelfSupportForSchoolDataStatisticsExport(req md.SelfSupportForSchoolDataSta
 		var data = map[string]map[string]map[string]map[string]map[string]float64{}
 		for _, vv := range m {
 			device := deviceListMapping[vv.SelfSupportForSchoolOrd.DeviceSn]
+			ordCreateAt, _ := time.ParseInLocation("2006-01-02 15:04:05", vv.SelfSupportForSchoolOrd.CreateAt, time.Local)
+			merchantCreateAt, _ := time.ParseInLocation("2006-01-02 15:04:05", merchantListMapping[device.MerchantId].CreateAt, time.Local)
 			shopName := merchantListMapping[device.MerchantId].Name
+			if ordCreateAt.Before(merchantCreateAt) {
+				shopName = "设备已更换商户"
+			}
 			deviceName := device.Name
 			if data[vv.Enterprise.Name] == nil {
 				data[vv.Enterprise.Name] = make(map[string]map[string]map[string]map[string]float64)