diff --git a/src/SJZY.Track.Application/Services/TrackOrders/TrackOrderService.cs b/src/SJZY.Track.Application/Services/TrackOrders/TrackOrderService.cs
index 65fb583f..472c63bf 100644
--- a/src/SJZY.Track.Application/Services/TrackOrders/TrackOrderService.cs
+++ b/src/SJZY.Track.Application/Services/TrackOrders/TrackOrderService.cs
@@ -119,7 +119,7 @@ public class TrackOrderService : ApplicationService
         if (orderId != null && orderId > 0)
             whereExpression = m => m.Id == orderId;
 
-        if (string.IsNullOrEmpty(orderNo) && systemId != null && systemId > 0)
+        if (!string.IsNullOrEmpty(orderNo) && systemId != null && systemId > 0)
             whereExpression = m => m.OrderNo == orderNo && m.SubSystemId == systemId;
 
         if (orderId == default && orderNo == default && systemId == default)