diff --git a/lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderSummary.java b/lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderSummary.java
index 43088f10c..1fb910d2b 100644
--- a/lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderSummary.java
+++ b/lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderSummary.java
@@ -21,6 +21,8 @@ public record LastlegOrderSummary(
     String sourceOrderNo,
     String customerId,
     String customerName,
+    @Schema(description = "头程与尾程共享的稳定柜身份；用于加载整柜入库计划预览")
+    String sourceContainerBookingId,
     String overseasWarehouseId,
     String overseasWarehouseCode,
     String overseasWarehouseName,
diff --git a/lastleg-service/src/main/java/com/baiyue/lastleg/service/LastlegOrderService.java b/lastleg-service/src/main/java/com/baiyue/lastleg/service/LastlegOrderService.java
index b459ffc7e..622a55aae 100644
--- a/lastleg-service/src/main/java/com/baiyue/lastleg/service/LastlegOrderService.java
+++ b/lastleg-service/src/main/java/com/baiyue/lastleg/service/LastlegOrderService.java
@@ -671,7 +671,8 @@ public class LastlegOrderService {
         List<LastlegOrderMapper.PalletMergeRelationRow> related = relations == null ? List.of() : relations;
         return new LastlegOrderSummary(o.getId(), displayOrderNo(o), o.getOrderType(),
             LastlegOrderType.labelOf(o.getOrderType()), o.getDestinationType(), o.getSourceInboundId(),
-            displayInboundCode(o), o.getLxCode(), o.getSourceOrderNo(), o.getCustomerId(), o.getCustomerName(), o.getOverseasWarehouseId(),
+            displayInboundCode(o), o.getLxCode(), o.getSourceOrderNo(), o.getCustomerId(), o.getCustomerName(),
+            o.getSourceContainerBookingId(), o.getOverseasWarehouseId(),
             o.getOverseasWarehouseCode(), o.getOverseasWarehouseName(), o.getTransferWarehouseId(), o.getTransferWarehouseCode(),
             o.getTransferWarehouseName(), o.getFbaWarehouseCode(), o.getContainerNo(), containerNode,
             o.getAbnormal(), o.getDetained(), o.getHoldChargeable(), o.getHoldReason(),
diff --git a/lastleg-service/src/test/java/com/baiyue/lastleg/service/LastlegOrderServiceTest.java b/lastleg-service/src/test/java/com/baiyue/lastleg/service/LastlegOrderServiceTest.java
index 71a8f047a..9df43b800 100644
--- a/lastleg-service/src/test/java/com/baiyue/lastleg/service/LastlegOrderServiceTest.java
+++ b/lastleg-service/src/test/java/com/baiyue/lastleg/service/LastlegOrderServiceTest.java
@@ -1,6 +1,7 @@
 package com.baiyue.lastleg.service;
 
 import com.baiyue.lastleg.dto.LastlegOrderRequests;
+import com.baiyue.lastleg.dto.LastlegOrderSummary;
 import com.baiyue.lastleg.dto.ContainerPlanProgressDetail;
 import com.baiyue.lastleg.dto.ContainerPlanProgressSummary;
 import com.baiyue.lastleg.dto.ContainerArrivalTimeView;
@@ -39,6 +40,7 @@ import java.math.BigDecimal;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.junit.jupiter.api.Assertions.assertThrows;
@@ -84,6 +86,20 @@ class LastlegOrderServiceTest {
         assertEquals("WT-WH-20260911-020225", LastlegOrderService.displayOrderNo(order));
     }
 
+    @Test
+    void exposesStableContainerBookingIdInOrderSummary() {
+        LastlegOrder order = new LastlegOrder();
+        order.setId(11L);
+        order.setOrderNo("LMO-1");
+        order.setSourceContainerBookingId("BOOKING-1");
+
+        LastlegOrderSummary summary = ReflectionTestUtils.invokeMethod(
+            service, "summary", order, List.of(), null, "UNSCHEDULED");
+
+        assertNotNull(summary);
+        assertEquals("BOOKING-1", summary.sourceContainerBookingId());
+    }
+
     @BeforeEach
     void setUp() {
         service = new LastlegOrderService();