diff --git a/mhd_bms/src/main/java/com/mhd/bms/application/server/billManage/BillManageApplicationService.java b/mhd_bms/src/main/java/com/mhd/bms/application/server/billManage/BillManageApplicationService.java
index e1d0001b9..714c447aa 100644
--- a/mhd_bms/src/main/java/com/mhd/bms/application/server/billManage/BillManageApplicationService.java
+++ b/mhd_bms/src/main/java/com/mhd/bms/application/server/billManage/BillManageApplicationService.java
@@ -18,6 +18,7 @@ import com.mhd.bms.domain.billOperationLog.repository.todo.BillOperationLogDO;
 import com.mhd.bms.domain.billOperationLog.service.BillOperationLogDomainService;
 import com.mhd.bms.domain.billingStatement.entity.BillingStatement;
 import com.mhd.bms.domain.billingStatement.repository.po.BillingStatementPO;
+import com.mhd.bms.domain.billingStatement.repository.todo.BillingStatementDO;
 import com.mhd.bms.domain.billingStatement.service.BillingStatementDomainService;
 import com.mhd.bms.domain.ncLog.entity.NcLog;
 import com.mhd.bms.domain.ncLog.repository.mapper.NcLogMapper;
@@ -784,6 +785,19 @@ public class BillManageApplicationService {
         billDetailDO.setUpdateBy(loginUser.getUserid());
         billDetailDO.setUpdateByName(loginUser.getUserPo().getUserName());
         billDetailDO.setUpdateTime(new Date());
+        // 同步更新计费流水的费用科目、服务项（因为这些字段在 billing_statement 表，不在 bill_detail 表）
+        if (billDetailPO.getBillingStatementId() != null) {
+            BillingStatementDO billingStatementDO = new BillingStatementDO();
+            billingStatementDO.setBillingStatementId(billDetailPO.getBillingStatementId());
+            billingStatementDO.setFirstSubjectCode(detailDTO.getFirstSubjectCode());
+            billingStatementDO.setFirstSubjectName(detailDTO.getFirstSubjectName());
+            billingStatementDO.setServiceItemsCode(detailDTO.getServiceItemsCode());
+            billingStatementDO.setServiceItemsName(detailDTO.getServiceItemsName());
+            billingStatementDO.setUpdateBy(loginUser.getUserid());
+            billingStatementDO.setUpdateByName(loginUser.getUserPo().getUserName());
+            billingStatementDO.setUpdateTime(new Date());
+            billingStatementApplicationService.update(billingStatementDO);
+        }
         Boolean flag = billDetailDomainService.update(billDetailDO);
         // 重新计算账单总金额并更新主表
         List<BillDetailPO> allDetails = billDetailDomainService.getDetailsByBillManageId(billManagePO.getBillManageId());