diff --git a/ZR.Service/mes/qc/backend/QcBackEndService.cs b/ZR.Service/mes/qc/backend/QcBackEndService.cs
index 75768f9d..18bfb518 100644
--- a/ZR.Service/mes/qc/backend/QcBackEndService.cs
+++ b/ZR.Service/mes/qc/backend/QcBackEndService.cs
@@ -1,28 +1,16 @@
 using System;
-using System.Globalization;
-using System.IO;
-using System.Linq;
 using System.Text.Json;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
-using System.Transactions;
-using Aliyun.OSS;
-using AutoMapper;
 using Infrastructure.Attribute;
-using Infrastructure.Extensions;
-using JinianNet.JNTemplate;
-using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.Extensions.Logging;
 using MQTTnet.Protocol;
 using SqlSugar;
 using ZR.Common.MqttHelper;
-using ZR.Model;
 using ZR.Model.Business;
 using ZR.Model.Dto;
 using ZR.Model.MES.wms;
-using ZR.Repository;
 using ZR.Service.Business.IBusinessService;
-using static System.Runtime.InteropServices.JavaScript.JSType;
 
 namespace ZR.Service.Business
 {
@@ -690,6 +678,16 @@ namespace ZR.Service.Business
                     Context.Ado.RollbackTran();
                     return "箱标签零件号与工单零件号不一致!";
                 }
+                bool hasAny = Context
+                    .Queryable<QcBackEndRecordLabelScan>()
+                    .Where(it => it.Label == data.Label)
+                    .Where(it => it.LabelType == 1)
+                    .Any();
+                if (hasAny)
+                {
+                    Context.Ado.RollbackTran();
+                    return "此外箱标签已扫过，禁止重复扫码!";
+                }
                 // 上一个内标签流水号检查
                 int oldPackageLabelSort = 1;
                 QcBackEndRecordLabelScan lastPackagelabelInfo = Context
@@ -698,7 +696,7 @@ namespace ZR.Service.Business
                     .Where(it => it.LabelType == 1)
                     .OrderByDescending(it => it.LabelSort)
                     .First();
-                if(lastPackagelabelInfo == null)
+                if (lastPackagelabelInfo == null)
                 {
                     oldPackageLabelSort = 0;
                 }
@@ -767,6 +765,17 @@ namespace ZR.Service.Business
                     Context.Ado.RollbackTran();
                     return "此内标签已扫过，禁止重复扫码!";
                 }
+                bool hasAny2 = Context
+                    .Queryable<QcBackEndRecordLabelScan>()
+                    .Where(it => it.Label == data.Label)
+                    .Where(it => it.LabelType == 1)
+                    .Where(it => it.LabelSort > 0)
+                    .Any();
+                if (hasAny2)
+                {
+                    Context.Ado.RollbackTran();
+                    return "此外箱标签已扫过，禁止重复扫码!";
+                }
                 // 内标签工单确认
                 QcBackEndServiceWorkorder workorder = Context
                     .Queryable<QcBackEndServiceWorkorder>()
@@ -847,9 +856,9 @@ namespace ZR.Service.Business
             bool neeedScan = false;
             // 工单判断
             QcBackEndServiceWorkorder workorderInfo = Context
-                    .Queryable<QcBackEndServiceWorkorder>()
-                    .Where(it => it.WorkOrder == workorder)
-                    .First();
+                .Queryable<QcBackEndServiceWorkorder>()
+                .Where(it => it.WorkOrder == workorder)
+                .First();
             if (workorder == null)
             {
                 throw new Exception($"异常：工单不存在{workorder}");
@@ -876,7 +885,7 @@ namespace ZR.Service.Business
                 .Where(it => it.WorkOrder == workorder)
                 .Where(it => it.LabelType == 1)
                 .Count();
-            
+
             packageLabelCount -= 1;
             if (packageLabelCount < 0)
             {
@@ -955,7 +964,7 @@ namespace ZR.Service.Business
                 _logger.LogInformation($"发送后道外箱标签打印成功：{topic}");
 
                 // 添加打印记录
-                await AddBackendLabelPrintRecordAsync(newLabelScran,mqttEventDto, maxPackage);
+                await AddBackendLabelPrintRecordAsync(newLabelScran, mqttEventDto, maxPackage);
             }
             catch (JsonException ex)
             {
@@ -1057,7 +1066,7 @@ namespace ZR.Service.Business
                 batchCode = DateTime.Now.ToString("yyMMdd") + "000";
             }
             // 提取箱流水号
-            int packageSort = 0;
+            int packageSort = 1;
             QcBackendRecordLabelPrint labelPrintRecord = Context
                 .Queryable<QcBackendRecordLabelPrint>()
                 .Where(it => it.PartNumber == newLabelScran.PartNumber)
@@ -1067,7 +1076,7 @@ namespace ZR.Service.Business
                 .First();
             if (labelPrintRecord != null)
             {
-                packageSort = labelPrintRecord.SerialNumber + 1 ?? 0;
+                packageSort = labelPrintRecord.SerialNumber + 1 ?? 1;
             }
             // 提取产品描述
             string checkPartnumber = newLabelScran.PartNumber;
@@ -1372,6 +1381,5 @@ namespace ZR.Service.Business
         {
             return Guid.NewGuid().ToString("N").Substring(0, 10); // Generate a 10-character unique ID
         }
-
     }
 }