diff --git a/business/partner/purchase/mtwm/order.go b/business/partner/purchase/mtwm/order.go
index cdf04c24c..82ee31b6b 100644
--- a/business/partner/purchase/mtwm/order.go
+++ b/business/partner/purchase/mtwm/order.go
@@ -574,7 +574,7 @@ func (c *PurchaseHandler) ListOrders(ctx *jxcontext.Context, parentTask tasksch.
 			seqStart := 1
 			i := 0
 			for {
-				batchSize := int(math.Min(math.Pow(2, float64(i)), float64(mtwmapi.MaxGap4GetOrderIdByDaySeq)))
+				batchSize := int(math.Min(math.Pow(2, float64(i*3)), float64(mtwmapi.MaxGap4GetOrderIdByDaySeq)))
 				seqEnd := seqStart + batchSize - 1
 				var tmpOrderIDs []int64
 				if seqStart == seqEnd {