diff --git a/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java b/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java
index cdef926..20db80b 100644
--- a/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java
+++ b/src/main/java/com/aida/seller/module/order/service/OrderServiceImpl.java
@@ -138,6 +138,7 @@ public class OrderServiceImpl extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
             vo.setPrice(order.getTotalPrice());
             vo.setBuyerUsername("@" + (order.getBuyerUsername() != null ? order.getBuyerUsername() : ""));
             vo.setDate(order.getCreateTime());
+            vo.setPaymentId(order.getPaymentId());
 
             List<OrderItemEntity> items = itemsMap.getOrDefault(order.getId(), new ArrayList<>());
             List<OrderVO.ItemVO> itemVOs = items.stream().map(item -> {
@@ -191,6 +192,7 @@ public class OrderServiceImpl extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
             vo.setStatus(order.getStatus());
             vo.setShopName(order.getShopName());
             vo.setSellerId(order.getSellerId());
+            vo.setPaymentId(order.getPaymentId());
 
             List<OrderItemEntity> items = itemsMap.getOrDefault(order.getId(), Collections.emptyList());
             List<BuyerOrderItemVO> itemVOs = items.stream().map(item -> {
diff --git a/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java b/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java
index 02a1cf7..ec88242 100644
--- a/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java
+++ b/src/main/java/com/aida/seller/module/order/vo/BuyerOrderVO.java
@@ -38,4 +38,8 @@ public class BuyerOrderVO implements Serializable {
 
     @Schema(description = "商品明细列表")
     private List<BuyerOrderItemVO> items;
+
+    @Schema(description = "支付ID")
+    @JsonSerialize(using = ToStringSerializer.class)
+    private Long paymentId;
 }
diff --git a/src/main/java/com/aida/seller/module/order/vo/OrderVO.java b/src/main/java/com/aida/seller/module/order/vo/OrderVO.java
index 6ef66b0..49d273f 100644
--- a/src/main/java/com/aida/seller/module/order/vo/OrderVO.java
+++ b/src/main/java/com/aida/seller/module/order/vo/OrderVO.java
@@ -20,6 +20,9 @@ public class OrderVO implements Serializable {
     @JsonSerialize(using = ToStringSerializer.class)
     private Long orderId;
 
+    @Schema(description = "交易流水号")
+    private Long paymentId;
+
     @Schema(description = "商品明细列表")
     private List<ItemVO> items;