diff --git a/AMESCoreStudio.Web/Controllers/PCSController.cs b/AMESCoreStudio.Web/Controllers/PCSController.cs
index 128611cb..36edea12 100644
--- a/AMESCoreStudio.Web/Controllers/PCSController.cs
+++ b/AMESCoreStudio.Web/Controllers/PCSController.cs
@@ -9105,10 +9105,13 @@ namespace AMESCoreStudio.Web.Controllers
                     int TotalQTY = 0;
                     foreach (var item1 in WipBarcodeOhter)
                     {
-                        int StrNoQty = int.Parse(item1.StartNO.Substring(SNStart, SNLen));
-                        // 結束流水碼
-                        int EndNoQty = int.Parse(item1.EndNO.Substring(SNStart, SNLen));
-                        TotalQTY += EndNoQty - StrNoQty + 1;
+                        if (!string.IsNullOrWhiteSpace(item1.StartNO.Trim()))
+                        {
+                            int StrNoQty = int.Parse(item1.StartNO.Substring(SNStart, SNLen));
+                            // 結束流水碼
+                            int EndNoQty = int.Parse(item1.EndNO.Substring(SNStart, SNLen));
+                            TotalQTY += EndNoQty - StrNoQty + 1;
+                        }
                     }
 
                     item.WipBarcodeOhterQTY = TotalQTY;