diff --git a/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java b/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java
index 27b61e6ee..c052e646d 100644
--- a/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java
+++ b/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java
@@ -13,7 +13,7 @@ public record UnifiedOrderQuery(
     @Size(max = 64) String keyword,
     @Size(max = 64) String orderNo,
     @Schema(allowableValues = {"PENDING_REVIEW", "WAIT_MEASURE", "WAIT_PALLETIZE", "INBOUNDED",
-        "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED"})
+        "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED", "COMPLETED"})
     @Size(max = 32) String mainStatus,
     Long customerId,
     Long receivingWarehouseId,
diff --git a/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java b/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java
index fd7d4a5ff..d62472c54 100644
--- a/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java
+++ b/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java
@@ -38,7 +38,7 @@ import java.util.stream.Collectors;
 public class UnifiedOrderQueryService {
     private static final Set<String> MAIN_STATUSES = Set.of(
         "PENDING_REVIEW", "WAIT_MEASURE", "WAIT_PALLETIZE", "INBOUNDED", "WAIT_SPLIT",
-        "LOADING", "LOADED", "DELIVERED");
+        "LOADING", "LOADED", "DELIVERED", "COMPLETED");
     private static final Set<String> REVIEW_STATUSES = Set.of("UNRECORDED", "PENDING", "APPROVED", "REJECTED");
     private static final List<OrderStatus> ACTIVE_ORDER_STATUSES = List.copyOf(EnumSet.of(
         OrderStatus.SUBMITTED, OrderStatus.APPROVED, OrderStatus.ACCEPTED,
@@ -81,7 +81,8 @@ public class UnifiedOrderQueryService {
             return pageFromFirstleg(tenantId, query, includeCoLoadGroups);
         }
         List<OrderStatus> statuses = "PENDING_REVIEW".equals(query.mainStatus())
-            ? List.of(OrderStatus.SUBMITTED) : ACTIVE_ORDER_STATUSES;
+            ? List.of(OrderStatus.SUBMITTED)
+            : "COMPLETED".equals(query.mainStatus()) ? List.of(OrderStatus.COMPLETED) : ACTIVE_ORDER_STATUSES;
         PageResult<OrderEntity> source = orders.unifiedPage(tenantId, query, statuses);
         List<Long> sourceOrderIds = source.records().stream().map(OrderEntity::getId).toList();
         Map<Long, FirstlegUnifiedOrderClient.Summary> inboundByOrder = "PENDING_REVIEW".equals(query.mainStatus())
@@ -335,8 +336,9 @@ public class UnifiedOrderQueryService {
         }
         FirstlegUnifiedOrderClient.Inbound inbound = summary.inbound();
         boolean pendingReview = order.getStatus() == OrderStatus.SUBMITTED;
-        String mainStatus = pendingReview ? "PENDING_REVIEW" : summary.mainStatus();
-        String nextAction = pendingReview ? "APPROVE_ORDER" : summary.nextAction();
+        boolean completed = order.getStatus() == OrderStatus.COMPLETED;
+        String mainStatus = pendingReview ? "PENDING_REVIEW" : completed ? "COMPLETED" : summary.mainStatus();
+        String nextAction = pendingReview ? "APPROVE_ORDER" : completed ? null : summary.nextAction();
         return new UnifiedOrderResponse.Row(order.getId(), order.getVersion(), order.getTenantId(), order.getOrderNo(),
             mainStatus, nextAction, Boolean.TRUE.equals(summary.customerFeeConfirmationRequired()), relation(order, childCounts), order.getStatus(),
             order.getCustomerId(), order.getCustomerName(),
@@ -366,8 +368,9 @@ public class UnifiedOrderQueryService {
                                          CargoSummary cargo,
                                          UnifiedOrderResponse.CoLoadGroupSummary coLoadGroup) {
         var inbound = summary.inbound();
+        boolean completed = order != null && order.getStatus() == OrderStatus.COMPLETED;
         return new UnifiedOrderResponse.Row(inbound.orderId(), order == null ? null : order.getVersion(), inbound.tenantId(), inbound.orderNo(),
-            summary.mainStatus(), summary.nextAction(), Boolean.TRUE.equals(summary.customerFeeConfirmationRequired()), relation(order, childCounts),
+            completed ? "COMPLETED" : summary.mainStatus(), completed ? null : summary.nextAction(), Boolean.TRUE.equals(summary.customerFeeConfirmationRequired()), relation(order, childCounts),
             parseOrderStatus(inbound.orderStatusSnapshot()),
             inbound.customerId(), inbound.customerName(), inbound.channelCode(), inbound.channelName(),
             order != null && Boolean.TRUE.equals(order.getChannelChanged()), inbound.warehouseId(),
@@ -424,6 +427,7 @@ public class UnifiedOrderQueryService {
     private String orderMainStatus(OrderStatus status) {
         if (status == null) return null;
         return status == OrderStatus.SUBMITTED ? "PENDING_REVIEW"
+            : status == OrderStatus.COMPLETED ? "COMPLETED"
             : ACTIVE_ORDER_STATUSES.contains(status) ? "WAIT_MEASURE" : null;
     }
 
@@ -559,7 +563,8 @@ public class UnifiedOrderQueryService {
     }
 
     private boolean requiresFirstlegQuery(UnifiedOrderQuery query) {
-        return (StringUtils.hasText(query.mainStatus()) && !"PENDING_REVIEW".equals(query.mainStatus()))
+        return (StringUtils.hasText(query.mainStatus())
+            && !Set.of("PENDING_REVIEW", "COMPLETED").contains(query.mainStatus()))
             || query.expectedArrivalDate() != null
             || StringUtils.hasText(query.feeReviewStatus()) || StringUtils.hasText(query.containerNo())
             || StringUtils.hasText(query.cabinetNo()) || query.sailingDate() != null || query.loaded() != null
diff --git a/order/src/main/resources/openapi/order-v1.yaml b/order/src/main/resources/openapi/order-v1.yaml
index 22662a888..eb5873cb7 100644
--- a/order/src/main/resources/openapi/order-v1.yaml
+++ b/order/src/main/resources/openapi/order-v1.yaml
@@ -802,7 +802,7 @@ components:
         tenantId: {type: string, pattern: '^[1-9][0-9]*$'}
         keyword: {type: string, maxLength: 64}
         orderNo: {type: string, maxLength: 64}
-        mainStatus: {type: string, enum: [PENDING_REVIEW, WAIT_MEASURE, WAIT_PALLETIZE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED]}
+        mainStatus: {type: string, enum: [PENDING_REVIEW, WAIT_MEASURE, WAIT_PALLETIZE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED, COMPLETED]}
         customerId: {type: string, pattern: '^[1-9][0-9]*$'}
         receivingWarehouseId: {type: string, pattern: '^[1-9][0-9]*$'}
         destinationWarehouseId: {type: string, pattern: '^[1-9][0-9]*$'}
@@ -878,7 +878,7 @@ components:
         asOf: {type: string, format: date-time}
     UnifiedMainStatus:
       type: string
-      enum: [PENDING_REVIEW, WAIT_MEASURE, WAIT_PALLETIZE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED]
+      enum: [PENDING_REVIEW, WAIT_MEASURE, WAIT_PALLETIZE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED, COMPLETED]
       description: >-
         统一订单八态产品主状态。ONE_CLICK_DROPSHIP 测量计费完成后进入 WAIT_PALLETIZE，封托完成后进入 WAIT_SPLIT；
         STANDARD 保持既有流程，INBOUNDED 仅兼容存量已入库记录。
@@ -1389,7 +1389,7 @@ components:
       description: 统一订单八态主状态筛选；WAIT_PALLETIZE、WAIT_SPLIT 与存量兼容状态 INBOUNDED 独立查询
       schema:
         type: string
-        enum: [PENDING_REVIEW, WAIT_MEASURE, WAIT_PALLETIZE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED]
+        enum: [PENDING_REVIEW, WAIT_MEASURE, WAIT_PALLETIZE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED, COMPLETED]
     UnifiedInboundCode:
       {name: inboundCode, in: query, required: false, description: 订单创建时生成的入仓码，所有订单状态均可查询, schema: {type: string, maxLength: 40}}
     UnifiedInternalOrderStatus:
diff --git a/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java b/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java
index 90086d33e..07a5ecf2d 100644
--- a/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java
+++ b/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java
@@ -28,7 +28,7 @@ class UnifiedOrderApiContractTest {
     }
 
     @Test
-    void documentsEightProductMainStatuses() throws Exception {
+    void documentsProductMainStatusesThroughCompletion() throws Exception {
         String yaml = new ClassPathResource("openapi/order-v1.yaml")
             .getContentAsString(StandardCharsets.UTF_8);
         Map<String, Object> document = stringMap(new Yaml().load(yaml));
@@ -43,7 +43,7 @@ class UnifiedOrderApiContractTest {
         Map<String, Object> schema = stringMap(mainStatus.get("schema"));
         assertThat(stringList(schema.get("enum"))).containsExactly(
             "PENDING_REVIEW", "WAIT_MEASURE", "WAIT_PALLETIZE", "INBOUNDED", "WAIT_SPLIT",
-            "LOADING", "LOADED", "DELIVERED");
+            "LOADING", "LOADED", "DELIVERED", "COMPLETED");
         assertThat(mainStatus.get("description").toString())
             .contains("WAIT_PALLETIZE", "WAIT_SPLIT", "INBOUNDED");
 
@@ -51,7 +51,7 @@ class UnifiedOrderApiContractTest {
         Map<String, Object> responseStatus = stringMap(schemas.get("UnifiedMainStatus"));
         assertThat(stringList(responseStatus.get("enum"))).containsExactly(
             "PENDING_REVIEW", "WAIT_MEASURE", "WAIT_PALLETIZE", "INBOUNDED", "WAIT_SPLIT",
-            "LOADING", "LOADED", "DELIVERED");
+            "LOADING", "LOADED", "DELIVERED", "COMPLETED");
         assertThat(responseStatus.get("description").toString())
             .contains("WAIT_PALLETIZE", "WAIT_SPLIT", "INBOUNDED");
         Schema queryAnnotation = UnifiedOrderQuery.class.getDeclaredField("mainStatus")
@@ -59,7 +59,7 @@ class UnifiedOrderApiContractTest {
         assertThat(queryAnnotation).isNotNull();
         assertThat(queryAnnotation.allowableValues()).containsExactly(
             "PENDING_REVIEW", "WAIT_MEASURE", "WAIT_PALLETIZE", "INBOUNDED", "WAIT_SPLIT",
-            "LOADING", "LOADED", "DELIVERED");
+            "LOADING", "LOADED", "DELIVERED", "COMPLETED");
 
         Map<String, Object> row = stringMap(schemas.get("UnifiedOrderRow"));
         assertThat(stringMap(row.get("properties"))).containsKeys(
diff --git a/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java b/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java
index a3c60af43..685449005 100644
--- a/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java
+++ b/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java
@@ -106,6 +106,26 @@ class UnifiedOrderQueryServiceTest {
         });
     }
 
+    @Test
+    void completedOrderOverridesDeliveredInboundProjectionAndSupportsMainStatusFilter() {
+        UnifiedOrderQuery query = query("COMPLETED");
+        OrderEntity order = order(OrderStatus.COMPLETED);
+        var summary = summary("DELIVERED", null);
+        when(orders.unifiedPage(eq(10001L), eq(query), eq(List.of(OrderStatus.COMPLETED))))
+            .thenReturn(new PageResult<>(List.of(order), 1, 20, 1, 1));
+        when(firstleg.summaries(eq("internal-token"), any()))
+            .thenReturn(ApiResponse.success(List.of(summary)));
+
+        var result = service.page(10001L, query);
+
+        assertThat(result.records()).singleElement().satisfies(row -> {
+            assertThat(row.mainStatus()).isEqualTo("COMPLETED");
+            assertThat(row.internalOrderStatus()).isEqualTo(OrderStatus.COMPLETED);
+            assertThat(row.nextAction()).isNull();
+        });
+        verify(firstleg, never()).page(any(), any());
+    }
+
     @Test
     void newlyCreatedOrderUsesItsOwnCargoPackageCountBeforeInboundExists() {
         UnifiedOrderQuery query = query(null);