diff --git a/src/CONSTANTS.ts b/src/CONSTANTS.ts
index f994f85..aa7328f 100644
--- a/src/CONSTANTS.ts
+++ b/src/CONSTANTS.ts
@@ -177,8 +177,10 @@ export const FIELD_MAPPINGS = {
     '不含税金额（元）大': 'bu_han_shui_jin_e_yuan_da',
     '含税总金额（元）大': 'han_shui_zong_jin_e_yuan_da',
     '不含税金额（元）（大+独）': 'bu_han_shui_jin_e_yuan_da_du',
+    '不含税金额（元）大+独': 'bu_han_shui_jin_e_yuan_da_du',
     '不含税金额（元）（大+独）（大写）': 'bu_han_shui_jin_e_yuan_da_du_da_xie',
     '含税总金额（元）（大+独）': 'han_shui_zong_jin_e_yuan_da_du',
+    '含税总金额（元）大+独': 'han_shui_zong_jin_e_yuan_da_du',
     '含税总金额（元）（大+独）（大写）': 'han_shui_zong_jin_e_yuan_da_du_da_xie',
     "不含税金额（元）多家": 'bu_han_shui_jin_e_yuan_duo',//不含税金额（元）多项改为多家
     "含税金额（元）多家": 'han_shui_jin_e_yuan_duo',//含税金额（元）多项改为多家
diff --git a/src/lib/util.ts b/src/lib/util.ts
index 767b369..0ff9345 100644
--- a/src/lib/util.ts
+++ b/src/lib/util.ts
@@ -124,6 +124,7 @@ export function processInvoiceDataItem(item: any): any {
     zhang_qi: zhang_qi,  // 使用计算后的账期值
     invoice_type_enum: item.invoice_type_enum,
     // 透传新增字段
+    contractNumber: item.contractNumber || item.salesContractNumber || '',
     tong_yi_she_hui_xin_yong_dai_ma: item.tong_yi_she_hui_xin_yong_dai_ma || null,
     bankName: item.bankName || null,
     bankAccount: item.bankAccount || null,
diff --git a/src/pages/api/approval/exportInvoiceData.ts b/src/pages/api/approval/exportInvoiceData.ts
index 02943c4..fdfcf4e 100644
--- a/src/pages/api/approval/exportInvoiceData.ts
+++ b/src/pages/api/approval/exportInvoiceData.ts
@@ -12,6 +12,7 @@ import { AGREEMENT_CODE_TO_NAME, AGREEMENT_TYPE_CODE, AGREEMENT_TYPES, XIANGMU_Z
 const COLUMN_WIDTHS = {
   "数据ID": 20,
   "项目编号": 15,
+  "合同编号": 25,
   "单位": 25,
   "票号": 15,
   "不含税金额": 15,
@@ -78,6 +79,7 @@ export default async function handler(
         where: { dataId: { in: ids } },
         orderBy: { invoiceJobNumber: 'asc' },
         select: {
+          salesContractNumber: true,
           dataId: true,
           invoiceJobNumber: true,
           projectNumber: true,
@@ -132,6 +134,7 @@ export default async function handler(
         where: whereForAll,
         orderBy: { invoiceJobNumber: 'asc' },
         select: {
+          salesContractNumber: true,
           dataId: true,
           invoiceJobNumber: true,
           projectNumber: true,
@@ -253,6 +256,7 @@ export default async function handler(
         "开票作业序号": item.invoiceJobNumber || '',
         "数据ID": item.dataId,
         "项目编号": item.projectNumber || '',
+        "合同编号": item.salesContractNumber || '',
         "单位": processed.customerCompanyName || '',
         // 移除"集团内外"
         "票号": item.piao_hao || '',
@@ -280,6 +284,7 @@ export default async function handler(
         "开票作业序号",
         "数据ID",
         "项目编号",
+        "合同编号",
         "单位",
         // 移除"集团内外"
         "票号",
diff --git a/src/pages/api/approval/exportInvoiceDataFile.ts b/src/pages/api/approval/exportInvoiceDataFile.ts
index e4c7ba3..173df84 100644
--- a/src/pages/api/approval/exportInvoiceDataFile.ts
+++ b/src/pages/api/approval/exportInvoiceDataFile.ts
@@ -25,6 +25,7 @@ const COLUMN_WIDTHS = {
   "开票作业序号": 15,
   "数据ID": 20,
   "项目编号": 15,
+  "合同编号": 25,
   "单位": 25,
   // 移除“集团内外”
   "票号": 15,
@@ -208,6 +209,7 @@ export default async function handler(
         "开票作业序号": item.invoiceJobNumber || '',
         "数据ID": item.dataId,
         "项目编号": item.projectNumber || '',
+        "合同编号": item.salesContractNumber || '',
         "单位": processed.customerCompanyName || '',
         "票号": item.piao_hao || '',
         "不含税金额": buHanShuiAmount,
@@ -254,6 +256,7 @@ export default async function handler(
         "开票作业序号",
         "数据ID",
         "项目编号",
+        "合同编号",
         "单位",
         // "集团内外" 已移除
         "票号",
diff --git a/src/pages/api/approval/util.ts b/src/pages/api/approval/util.ts
index 2b4d9f1..7f9a893 100644
--- a/src/pages/api/approval/util.ts
+++ b/src/pages/api/approval/util.ts
@@ -39,8 +39,10 @@ export const ExcelToMySQLFieldMapping: {
     '不含税金额（元）大': 'bu_han_shui_jin_e_yuan_da',
     '含税总金额（元）大': 'han_shui_zong_jin_e_yuan_da',
     '不含税金额（元）（大+独）': 'bu_han_shui_jin_e_yuan_da_du',
+    '不含税金额（元）大+独': 'bu_han_shui_jin_e_yuan_da_du',
     '不含税金额（元）（大+独）（大写）': 'bu_han_shui_jin_e_yuan_da_du_da_xie',
     '含税总金额（元）（大+独）': 'han_shui_zong_jin_e_yuan_da_du',
+    '含税总金额（元）大+独': 'han_shui_zong_jin_e_yuan_da_du',
     '含税总金额（元）（大+独）（大写）': 'han_shui_zong_jin_e_yuan_da_du_da_xie',
     '审批编号': 'approvalNumber',
     '创建时间': 'creationTime',
diff --git a/src/pages/api/type.ts b/src/pages/api/type.ts
index 8d8c63e..0202e8f 100644
--- a/src/pages/api/type.ts
+++ b/src/pages/api/type.ts
@@ -221,6 +221,7 @@ export interface ProcessedInvoiceDataItemFromFunction {
   hui_kuan_jin_e: string | null;
   business_content: string;
   zhang_qi: string | null;
+  contractNumber?: string;
   // 新增：透传给前端使用
   tong_yi_she_hui_xin_yong_dai_ma?: string | null;
   bankName?: string | null;