diff --git a/jshERP-boot/src/main/java/com/jsh/erp/service/MaterialService.java b/jshERP-boot/src/main/java/com/jsh/erp/service/MaterialService.java
index d0f30464..b7c32430 100644
--- a/jshERP-boot/src/main/java/com/jsh/erp/service/MaterialService.java
+++ b/jshERP-boot/src/main/java/com/jsh/erp/service/MaterialService.java
@@ -28,6 +28,7 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.File;
 import java.math.BigDecimal;
+import java.math.BigInteger;
 import java.util.*;
 
 @Service
@@ -1329,13 +1330,14 @@ public class MaterialService {
     public String getMaxBarCode() {
         List<String> barCodeOldList = materialMapperEx.getBarCodeList();
         // 使用 Stream API 处理条码列表
-        OptionalLong maxBarcode = barCodeOldList.stream()
+        // 使用 BigInteger 处理可能的大数字
+        Optional<BigInteger> maxBarcode = barCodeOldList.stream()
                 .filter(StringUtil::isNumeric)   // 过滤掉非数字条码
-                .mapToLong(Long::parseLong)      // 将字符串转换为 Long 类型
-                .max();                          // 获取最大值
+                .map(BigInteger::new)            // 使用 BigInteger 构造函数
+                .max(Comparator.naturalOrder()); // 获取最大值
         // 如果存在最大值，返回它；否则返回 1000L
-        Long maxBarCodeOld = maxBarcode.orElse(1000L);
-        return maxBarCodeOld + "";
+        BigInteger maxBarCodeOld = maxBarcode.orElse(new BigInteger("1000"));
+        return maxBarCodeOld.toString();
     }
 
     public List<String> getMaterialNameList() {
diff --git a/jshERP-web/src/utils/util.js b/jshERP-web/src/utils/util.js
index 2d192b1c..86855d99 100644
--- a/jshERP-web/src/utils/util.js
+++ b/jshERP-web/src/utils/util.js
@@ -564,6 +564,36 @@ export function getPrevMonthFormatDate(monthNum) {
   return prevMonth.getFullYear() + seperator1 + month + seperator1 + strDate
 }
 
+/**
+ * 自定义大数加法函数，两个数字相加
+ * @param a
+ * @param b
+ * @returns {string}
+ */
+export function addBigNumbers(a, b) {
+  a = a.toString();
+  b = b.toString();
+  // 反转字符串，从个位开始计算
+  let aRev = a.split('').reverse();
+  let bRev = b.split('').reverse();
+  const maxLength = Math.max(aRev.length, bRev.length);
+  let result = [];
+  let carry = 0;
+  for (let i = 0; i < maxLength; i++) {
+    const digitA = i < aRev.length ? parseInt(aRev[i]) : 0;
+    const digitB = i < bRev.length ? parseInt(bRev[i]) : 0;
+    const sum = digitA + digitB + carry;
+    result.push(sum % 10);
+    carry = Math.floor(sum / 10);
+  }
+  // 处理最后的进位
+  if (carry > 0) {
+    result.push(carry);
+  }
+  // 反转回来得到正确的结果
+  return result.reverse().join('');
+}
+
 /**
  * JS中根据指定值删除数组中的元素
  * @param arrylist
diff --git a/jshERP-web/src/views/material/modules/MaterialModal.vue b/jshERP-web/src/views/material/modules/MaterialModal.vue
index b6a7174e..331eac0b 100644
--- a/jshERP-web/src/views/material/modules/MaterialModal.vue
+++ b/jshERP-web/src/views/material/modules/MaterialModal.vue
@@ -294,7 +294,7 @@
   import JEditableTable from '@/components/jeecg/JEditableTable'
   import { FormTypes, getRefPromise, VALIDATE_NO_PASSED, validateFormAndTables } from '@/utils/JEditableTableUtil'
   import { changeNameToPinYin, checkMaterial, checkMaterialBarCode, getMaterialAttributeNameList, getMaterialAttributeValueListById, getMaxBarCode, queryMaterialCategoryTreeList } from '@/api/api'
-  import { autoJumpNextInput, handleIntroJs, removeByVal } from '@/utils/util'
+  import { autoJumpNextInput, handleIntroJs, removeByVal, addBigNumbers } from '@/utils/util'
   import { getAction, httpAction } from '@/api/manage'
   import JImageUpload from '@/components/jeecg/JImageUpload'
   import JDate from '@/components/jeecg/JDate'
@@ -578,11 +578,14 @@
           if(this.action === 'copyAdd') {
             getMaxBarCode({}).then((res)=> {
               if (res && res.code === 200) {
-                let maxBarCode = res.data.barCode - 0
+                let maxBarCode = res.data.barCode
                 let meTableData = []
                 for (let i = 0; i < tab.dataSource.length; i++) {
                   let meInfo = tab.dataSource[i]
-                  meInfo.barCode = maxBarCode + i + 1
+                  console.log(maxBarCode)
+                  console.log(addBigNumbers(maxBarCode, i+1))
+                  meInfo.barCode = addBigNumbers(maxBarCode, i+1)
+                  console.log(meInfo.barCode)
                   meTableData.push(meInfo)
                 }
                 tab.dataSource = meTableData
@@ -1025,7 +1028,7 @@
           getMaxBarCode({}).then((res)=>{
             if(res && res.code===200) {
               let k = 0
-              let maxBarCode = res.data.barCode-0
+              let maxBarCode = res.data.barCode
               for (let i = 0; i < barCodeSku.length; i++) {
                 let currentBarCode = ''
                 let currentId = ''
@@ -1050,7 +1053,7 @@
                     wholesaleDecimal: wholesaleDecimal, lowDecimal: lowDecimal})
                 } else {
                   k = k+1
-                  currentBarCode = maxBarCode + k
+                  currentBarCode = addBigNumbers(maxBarCode, k)
                   meTableData.push({barCode: currentBarCode, commodityUnit: unit, sku: barCodeSku[i]})
                 }
               }
@@ -1080,13 +1083,13 @@
         if(this.maxBarCodeInfo === '') {
           getMaxBarCode({}).then((res)=> {
             if (res && res.code === 200) {
-              this.maxBarCodeInfo = res.data.barCode - 0
-              this.maxBarCodeInfo = this.maxBarCodeInfo + 1
+              this.maxBarCodeInfo = res.data.barCode
+              this.maxBarCodeInfo = addBigNumbers(this.maxBarCodeInfo, 1)
               target.setValues([{rowKey: row.id, values: {barCode: this.maxBarCodeInfo, commodityUnit: unit?unit:''}}])
             }
           })
         } else {
-          this.maxBarCodeInfo = this.maxBarCodeInfo + 1
+          this.maxBarCodeInfo = addBigNumbers(this.maxBarCodeInfo, 1)
           target.setValues([{rowKey: row.id, values: {barCode: this.maxBarCodeInfo, commodityUnit: unit?unit:''}}])
         }
       },