diff --git a/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.test.ts b/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.test.ts
new file mode 100644
index 00000000..b2074dd4
--- /dev/null
+++ b/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.test.ts
@@ -0,0 +1,94 @@
+import { buildOaBoardOpeningCodeImportPayload } from "./oaBoardOpeningCodeImport";
+import type { OaBoardProjectLookupItem } from "../../core/nonIntegratedApi";
+import type { FormValues } from "./productFormValueHelpers";
+import type { NonIntegratedOpeningReference } from "../../nonIntegratedStorage";
+
+function createOaItem(overrides: Partial<OaBoardProjectLookupItem> = {}) {
+  return {
+    title: "OA 开款",
+    productName: "",
+    brand: "",
+    productCategory: "",
+    categoryName: "",
+    openingCode: "XP2026071700000329",
+    currentStageName: "",
+    currentApprovalStageName: "",
+    styleImages: [],
+    formSummary: {
+      openingCode: "XP2026071700000329",
+      demandType: "",
+      category: "",
+      categoryName: "",
+      productPlanner: "",
+      operationBrandOwner: "",
+      spuOwner: "",
+      appearanceDesigner: "",
+      structureDesigner: "",
+      purchaseOwner: "",
+      merchandiserOwner: "",
+      competitorLink: "",
+      openingReason: "",
+      salesPriceBand: "",
+      platformPriceBand: "",
+      openingBrand: "",
+    },
+    ...overrides,
+  } as OaBoardProjectLookupItem;
+}
+
+function createCurrent() {
+  return {
+    formValues: {
+      brand: "",
+      adaptableBrands: [],
+      salesCategory: "",
+      productCategory: "",
+    } as FormValues,
+    openingReference: {
+      adaptableBrands: [],
+      salesCategory: "",
+      productCategory: "",
+    } as NonIntegratedOpeningReference,
+  };
+}
+
+describe("buildOaBoardOpeningCodeImportPayload", () => {
+  it.each([
+    ["住宅家具 - 鞋柜", "柜类", "鞋柜"],
+    ["住宅家具 - 书架", "架类", "书架"],
+  ])("maps %s to %s / %s", (sourceCategory, salesCategory, productCategory) => {
+    const item = createOaItem({
+      formSummary: {
+        ...createOaItem().formSummary,
+        category: sourceCategory,
+        categoryName: sourceCategory,
+      },
+    });
+
+    const result = buildOaBoardOpeningCodeImportPayload(item, createCurrent());
+
+    expect(result.formValues).toMatchObject({ salesCategory, productCategory });
+    expect(result.openingReference).toMatchObject({ salesCategory, productCategory });
+  });
+
+  it("does not retain an unmapped residential path as a product category", () => {
+    const item = createOaItem({
+      formSummary: {
+        ...createOaItem().formSummary,
+        category: "住宅家具 - 未定义柜体",
+        categoryName: "住宅家具 - 未定义柜体",
+      },
+    });
+
+    const result = buildOaBoardOpeningCodeImportPayload(item, createCurrent());
+
+    expect(result.formValues).toMatchObject({
+      salesCategory: "",
+      productCategory: "未定义柜体",
+    });
+    expect(result.openingReference).toMatchObject({
+      salesCategory: "",
+      productCategory: "未定义柜体",
+    });
+  });
+});
diff --git a/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.ts b/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.ts
index e4211932..8b121359 100644
--- a/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.ts
+++ b/furniture-3d-system/src/app/intake/non-integrated/workspaces/basic-info/oaBoardOpeningCodeImport.ts
@@ -7,12 +7,22 @@ import {
 import type { OaBoardProjectLookupItem } from "../../core/nonIntegratedApi";
 import type { FormValues } from "./productFormValueHelpers";
 import { BRAND_OPTIONS } from "./basicInfoConfig";
+import { getNonIntegratedSecondaryCategoryOptionsForProductCategory } from "@/lib/non-integrated-category-options";
 
 type OaBoardImportPayload = {
   formValues: FormValues;
   openingReference: NonIntegratedOpeningReference;
 };
 
+type ImportedCategoryValues = {
+  salesCategory: string;
+  productCategory: string;
+  hasSalesCategory: boolean;
+  hasProductCategory: boolean;
+};
+
+const RESIDENTIAL_FURNITURE_PREFIX = "住宅家具";
+
 function pickFirstNonEmpty(...values: Array<string | null | undefined>) {
   for (const value of values) {
     const normalized = String(value ?? "").trim();
@@ -44,6 +54,59 @@ function resolveImportedBrand(
   return currentBrand || NON_INTEGRATED_DEFAULT_BRAND;
 }
 
+function isResidentialFurnitureCategoryPath(value: string) {
+  return new RegExp(`^${RESIDENTIAL_FURNITURE_PREFIX}\\s*-\\s*`).test(value);
+}
+
+function readResidentialFurnitureLeafCategory(value: string) {
+  return value
+    .replace(new RegExp(`^${RESIDENTIAL_FURNITURE_PREFIX}\\s*-\\s*`), "")
+    .trim();
+}
+
+function resolveImportedCategories(
+  item: OaBoardProjectLookupItem,
+): ImportedCategoryValues {
+  const rawSalesCategory = pickFirstNonEmpty(
+    item.formSummary.category,
+    item.productCategory,
+  );
+  const rawProductCategory = pickFirstNonEmpty(
+    item.formSummary.categoryName,
+    item.categoryName,
+  );
+  const categoryPath = [rawProductCategory, rawSalesCategory].find(
+    isResidentialFurnitureCategoryPath,
+  );
+
+  if (!categoryPath) {
+    return {
+      salesCategory: rawSalesCategory,
+      productCategory: rawProductCategory,
+      hasSalesCategory: Boolean(rawSalesCategory),
+      hasProductCategory: Boolean(rawProductCategory),
+    };
+  }
+
+  const leafCategory = readResidentialFurnitureLeafCategory(categoryPath);
+  const secondaryCategoryOptions =
+    getNonIntegratedSecondaryCategoryOptionsForProductCategory(leafCategory);
+  const mappedSecondaryCategory =
+    secondaryCategoryOptions.length === 1 ? secondaryCategoryOptions[0] : "";
+
+  return {
+    salesCategory: mappedSecondaryCategory ||
+      (isResidentialFurnitureCategoryPath(rawSalesCategory)
+        ? ""
+        : rawSalesCategory),
+    productCategory: isResidentialFurnitureCategoryPath(rawProductCategory)
+      ? leafCategory
+      : rawProductCategory || leafCategory,
+    hasSalesCategory: Boolean(rawSalesCategory),
+    hasProductCategory: Boolean(rawProductCategory) || Boolean(leafCategory),
+  };
+}
+
 export function buildOaBoardOpeningCodeImportPayload(
   item: OaBoardProjectLookupItem,
   current: OaBoardImportPayload,
@@ -59,14 +122,7 @@ export function buildOaBoardOpeningCodeImportPayload(
     ...current.formValues.adaptableBrands,
     ...current.openingReference.adaptableBrands,
   ]).filter((brand) => BRAND_OPTIONS.includes(brand));
-  const nextSalesCategory = pickFirstNonEmpty(
-    item.formSummary.category,
-    item.productCategory,
-  );
-  const nextProductCategory = pickFirstNonEmpty(
-    item.formSummary.categoryName,
-    item.categoryName,
-  );
+  const importedCategories = resolveImportedCategories(item);
   const nextProductName = pickFirstNonEmpty(item.productName, item.title);
   const nextTargetPriceBand = pickFirstNonEmpty(
     item.formSummary.salesPriceBand,
@@ -93,9 +149,12 @@ export function buildOaBoardOpeningCodeImportPayload(
       productName: nextProductName || current.openingReference.productName,
       brand: normalizedBrand,
       adaptableBrands: nextAdaptableBrands,
-      salesCategory: nextSalesCategory || current.openingReference.salesCategory,
-      productCategory:
-        nextProductCategory || current.openingReference.productCategory,
+      salesCategory: importedCategories.hasSalesCategory
+        ? importedCategories.salesCategory
+        : current.openingReference.salesCategory,
+      productCategory: importedCategories.hasProductCategory
+        ? importedCategories.productCategory
+        : current.openingReference.productCategory,
       designer:
         current.openingReference.designer ||
         pickFirstNonEmpty(item.formSummary.appearanceDesigner),
@@ -125,9 +184,12 @@ export function buildOaBoardOpeningCodeImportPayload(
         pickFirstNonEmpty(styleImage?.alt) || current.formValues.previewImageName,
       brand: normalizedBrand,
       adaptableBrands: nextAdaptableBrands,
-      salesCategory: nextSalesCategory || current.formValues.salesCategory,
-      productCategory:
-        nextProductCategory || current.formValues.productCategory,
+      salesCategory: importedCategories.hasSalesCategory
+        ? importedCategories.salesCategory
+        : current.formValues.salesCategory,
+      productCategory: importedCategories.hasProductCategory
+        ? importedCategories.productCategory
+        : current.formValues.productCategory,
       designer:
         current.formValues.designer ||
         pickFirstNonEmpty(item.formSummary.appearanceDesigner),
diff --git a/furniture-3d-system/src/lib/non-integrated-category-options.ts b/furniture-3d-system/src/lib/non-integrated-category-options.ts
index 5e6081ce..9349ab63 100644
--- a/furniture-3d-system/src/lib/non-integrated-category-options.ts
+++ b/furniture-3d-system/src/lib/non-integrated-category-options.ts
@@ -161,6 +161,19 @@ export function getNonIntegratedProductCategoryOptions(
   );
 }
 
+export function getNonIntegratedSecondaryCategoryOptionsForProductCategory(
+  productCategory: string,
+) {
+  const normalizedProductCategory = productCategory.trim();
+  if (!normalizedProductCategory) return [];
+
+  return getUniqueNonEmptyValues(
+    NON_INTEGRATED_CATEGORY_OPTIONS.filter(
+      (option) => option.productCategory === normalizedProductCategory,
+    ).map((option) => option.secondaryCategory),
+  );
+}
+
 export function normalizeNonIntegratedProductCategoryForSecondaryCategory(
   secondaryCategory: string,
   productCategory: string,