diff --git a/server/app/goauto/purchase/admin_query.go b/server/app/goauto/purchase/admin_query.go
index d3ab64a..444d414 100644
--- a/server/app/goauto/purchase/admin_query.go
+++ b/server/app/goauto/purchase/admin_query.go
@@ -109,6 +109,9 @@ type AdminDetailResponse struct {
 	Matching MatchingView       `json:"matching"`
 }
 
+// Query-only value: never a PurchaseTask status or a logistics writeback state.
+const adminStatusSYBWritebackSucceeded = "syb_writeback_succeeded"
+
 func (s *Service) AdminList(ctx context.Context, req AdminListRequest) (AdminListResponse, error) {
 	if req.Page < 1 {
 		req.Page = 1
@@ -119,7 +122,7 @@ func (s *Service) AdminList(ctx context.Context, req AdminListRequest) (AdminLis
 	if req.PageSize > 100 {
 		req.PageSize = 100
 	}
-	if req.Status != "" && !validPurchaseStatus(req.Status) {
+	if req.Status != "" && req.Status != adminStatusSYBWritebackSucceeded && !validPurchaseStatus(req.Status) {
 		return AdminListResponse{}, fail(CodeInvalidRequest, "status 无效")
 	}
 	if req.ExecutionMode != "" && req.ExecutionMode != models.PurchaseExecutionModeRehearsal && req.ExecutionMode != models.PurchaseExecutionModeLive {
@@ -132,7 +135,9 @@ func (s *Service) AdminList(ctx context.Context, req AdminListRequest) (AdminLis
 	if req.TaskID > 0 {
 		query = query.Where("id = ?", req.TaskID)
 	}
-	if req.Status != "" {
+	if req.Status == adminStatusSYBWritebackSucceeded {
+		query = query.Where("id IN (?)", s.DB.WithContext(ctx).Model(&models.PurchaseOrderWriteback{}).Select("purchase_task_id").Where("status = ?", "succeeded"))
+	} else if req.Status != "" {
 		query = query.Where("status = ?", req.Status)
 	}
 	if req.ExecutionMode != "" {
diff --git a/server/app/goauto/purchase/admin_query_test.go b/server/app/goauto/purchase/admin_query_test.go
index ff8c4dd..07fc272 100644
--- a/server/app/goauto/purchase/admin_query_test.go
+++ b/server/app/goauto/purchase/admin_query_test.go
@@ -105,6 +105,63 @@ func TestAdminQueryValidationAndNotFound(t *testing.T) {
 	}
 }
 
+func TestAdminListSYBWritebackSucceededFilter(t *testing.T) {
+	s, first := orderWritebackFixture(t)
+	db := s.DB
+	if err := db.Model(&models.PurchaseOrderWriteback{}).Where("purchase_task_id = ?", first.ID).Update("status", "succeeded").Error; err != nil {
+		t.Fatal(err)
+	}
+	var successIDs []uint64
+	successIDs = append(successIDs, first.ID)
+	for _, state := range []string{"succeeded", "pending", "running", "failed", "unknown", "conflict", "none"} {
+		task := first
+		task.ID = 0
+		task.Status = models.PurchaseTaskStatusCancelled
+		task.PDDOrderNo = nil
+		task.WritebackStatus = models.PurchaseWritebackStatusSucceeded // old logistics must not match
+		task.CreateRequestID = uuid.NewString()
+		task.UnknownResolveRequestID = nil
+		if err := db.Create(&task).Error; err != nil {
+			t.Fatal(err)
+		}
+		if state != "none" {
+			if err := db.Create(&models.PurchaseOrderWriteback{PurchaseTaskID: task.ID, StockID: 2, DetailID: 1, OrderNo: "FILTER-DEMO", Status: state}).Error; err != nil {
+				t.Fatal(err)
+			}
+		}
+		if state == "succeeded" {
+			successIDs = append(successIDs, task.ID)
+		}
+	}
+	for page := 1; page <= 2; page++ {
+		out, err := s.AdminList(context.Background(), AdminListRequest{Status: adminStatusSYBWritebackSucceeded, Page: page, PageSize: 1})
+		if err != nil || out.Total != 2 || len(out.Items) != 1 || out.Items[0].ID != successIDs[2-page] {
+			t.Fatalf("page %d: %+v, %v", page, out, err)
+		}
+	}
+	for _, req := range []AdminListRequest{
+		{Status: adminStatusSYBWritebackSucceeded, TaskID: first.ID},
+		{Status: models.PurchaseTaskStatusOrderCreated},
+		{Status: adminStatusSYBWritebackSucceeded, PDDOrderNo: *first.PDDOrderNo, ExecutionMode: "live", TaskType: "syb_order", SYBProductID: *first.SYBProductID},
+	} {
+		out, err := s.AdminList(context.Background(), req)
+		if err != nil || out.Total != 1 || len(out.Items) != 1 || out.Items[0].ID != first.ID {
+			t.Fatalf("combined filter: %+v %v", out, err)
+		}
+	}
+	out, err := s.AdminList(context.Background(), AdminListRequest{})
+	if err != nil || out.Total != 8 {
+		t.Fatalf("clear filter: %+v %v", out, err)
+	}
+	out, err = s.AdminList(context.Background(), AdminListRequest{Status: adminStatusSYBWritebackSucceeded, PDDOrderNo: "not-found"})
+	if err != nil || out.Total != 0 {
+		t.Fatalf("empty filter: %+v %v", out, err)
+	}
+	if validPurchaseStatus(adminStatusSYBWritebackSucceeded) {
+		t.Fatal("filter became task state")
+	}
+}
+
 func TestAdminQueryHandlersRequireOperatorRole(t *testing.T) {
 	gin.SetMode(gin.TestMode)
 	for _, path := range []string{"/api/admin/v1/purchase-tasks", "/api/admin/v1/purchase-tasks/1"} {
diff --git a/web/src/views/goauto/purchase-tasks/index.vue b/web/src/views/goauto/purchase-tasks/index.vue
index 50554af..41088b8 100644
--- a/web/src/views/goauto/purchase-tasks/index.vue
+++ b/web/src/views/goauto/purchase-tasks/index.vue
@@ -157,7 +157,7 @@ export default {
   setup() { return { RefreshLeft, Search } },
   data() {
     return {
-      loading: false, loadError: '', tasks: [], total: 0, statuses: statusOptions,
+      loading: false, loadError: '', tasks: [], total: 0, statuses: [...statusOptions, { value: 'syb_writeback_succeeded', label: '已回填 SYB' }],
       orderWriteback: { open: false, saving: false, items: [] },
       query: { page: 1, pageSize: 20, taskId: '', taskType: '', shopeeOrderNo: '', status: '', executionMode: 'live', sybProductId: '', pddOrderNo: '' },
 	  detail: { open: false, loading: false, task: null, attempts: [], matching: null },
diff --git a/web/tests/e2e/purchase-order-writeback.spec.ts b/web/tests/e2e/purchase-order-writeback.spec.ts
index c27ccf9..3045702 100644
--- a/web/tests/e2e/purchase-order-writeback.spec.ts
+++ b/web/tests/e2e/purchase-order-writeback.spec.ts
@@ -82,6 +82,28 @@ test('冲突显示原因且没有覆盖按钮', async ({ page }) => {
   await expect(drawer.getByRole('button', { name: /回填 SYB 单号/ })).toHaveCount(0)
 })
 
+test('状态下拉框筛选已回填SYB，清空后恢复普通列表', async ({ page }) => {
+  const requests = await setup(page, 'succeeded')
+  const statuses: string[] = []
+  await page.route('**/api/admin/v1/purchase-tasks?**', async route => {
+    const query = new URL(route.request().url()).searchParams
+    statuses.push(query.get('status') || '')
+    expect(query.get('page')).toBe('1')
+    return route.fulfill({ json: { code: 200, data: { items: [{ id: 11, taskType: 'syb_order', executionMode: 'live', status: 'order_created', orderWriteback: { status: 'succeeded', canSubmit: false } }], total: 1 } } })
+  })
+  const field = page.locator('.search-form .el-form-item').filter({ has: page.locator('label').filter({ hasText: /^状态$/ }) })
+  await field.locator('.el-select').click()
+  await page.getByRole('option', { name: '已回填 SYB', exact: true }).click()
+  await page.getByRole('button', { name: '查询', exact: true }).click()
+  await expect.poll(() => statuses.at(-1)).toBe('syb_writeback_succeeded')
+  await expect(page.getByText('订单已创建', { exact: true }).first()).toBeVisible()
+  await field.locator('.el-select').hover()
+  await field.locator('.el-select__clear').click()
+  await page.getByRole('button', { name: '查询', exact: true }).click()
+  await expect.poll(() => statuses.at(-1)).toBe('')
+  expect(requests).toHaveLength(0)
+})
+
 for (const amount of ['0', '13.01']) {
   test(`已创建订单补金额 ${amount}，不重新采购或修改支付状态`, async ({ page }) => {
     const requests = await setup(page)