diff --git a/src/config/config.default.ts b/src/config/config.default.ts
index 8a1ffc2..e16fa81 100644
--- a/src/config/config.default.ts
+++ b/src/config/config.default.ts
@@ -37,6 +37,7 @@ import { DictItem } from '../entity/dict_item.entity';
 import { Template } from '../entity/template.entity';
 import { Area } from '../entity/area.entity';
 import { ProductStockComponent } from '../entity/product_stock_component.entity';
+import { ProductSiteSku } from '../entity/product_site_sku.entity';
 import { CategoryAttribute } from '../entity/category_attribute.entity';
 import { Category } from '../entity/category.entity';
 import DictSeeder from '../db/seeds/dict.seeder';
@@ -51,6 +52,7 @@ export default {
       entities: [
         Product,
         ProductStockComponent,
+        ProductSiteSku,
         WpProduct,
         Variation,
         User,
diff --git a/src/dto/product.dto.ts b/src/dto/product.dto.ts
index d7514c9..167641f 100644
--- a/src/dto/product.dto.ts
+++ b/src/dto/product.dto.ts
@@ -46,6 +46,10 @@ export class CreateProductDTO {
   @Rule(RuleType.string())
   description: string;
 
+  @ApiProperty({ example: '产品简短描述', description: '产品简短描述' })
+  @Rule(RuleType.string().optional())
+  shortDescription?: string;
+
   @ApiProperty({ description: '产品 SKU', required: false })
   @Rule(RuleType.string())
   sku?: string;
@@ -54,6 +58,10 @@ export class CreateProductDTO {
   @Rule(RuleType.number())
   categoryId?: number;
 
+  @ApiProperty({ description: '站点 SKU 列表', type: 'array', required: false })
+  @Rule(RuleType.array().items(RuleType.string()).optional())
+  siteSkus?: string[];
+
   // 通用属性输入(通过 attributes 统一提交品牌/口味/强度/尺寸/干湿等)
   @ApiProperty({ description: '属性列表', type: 'array' })
   @Rule(RuleType.array().required())
@@ -110,6 +118,10 @@ export class UpdateProductDTO {
   @Rule(RuleType.string())
   description?: string;
 
+  @ApiProperty({ example: '产品简短描述', description: '产品简短描述' })
+  @Rule(RuleType.string().optional())
+  shortDescription?: string;
+
   @ApiProperty({ description: '产品 SKU', required: false })
   @Rule(RuleType.string())
   sku?: string;
@@ -118,6 +130,10 @@ export class UpdateProductDTO {
   @Rule(RuleType.number())
   categoryId?: number;
 
+  @ApiProperty({ description: '站点 SKU 列表', type: 'array', required: false })
+  @Rule(RuleType.array().items(RuleType.string()).optional())
+  siteSkus?: string[];
+
   // 商品价格
   @ApiProperty({ description: '价格', example: 99.99, required: false })
   @Rule(RuleType.number())
@@ -179,6 +195,10 @@ export class BatchUpdateProductDTO {
   @Rule(RuleType.string().optional())
   description?: string;
 
+  @ApiProperty({ example: '产品简短描述', description: '产品简短描述', required: false })
+  @Rule(RuleType.string().optional())
+  shortDescription?: string;
+
   @ApiProperty({ description: '产品 SKU', required: false })
   @Rule(RuleType.string().optional())
   sku?: string;
@@ -187,6 +207,10 @@ export class BatchUpdateProductDTO {
   @Rule(RuleType.number().optional())
   categoryId?: number;
 
+  @ApiProperty({ description: '站点 SKU 列表', type: 'array', required: false })
+  @Rule(RuleType.array().items(RuleType.string()).optional())
+  siteSkus?: string[];
+
   @ApiProperty({ description: '价格', example: 99.99, required: false })
   @Rule(RuleType.number().optional())
   price?: number;
diff --git a/src/entity/product.entity.ts b/src/entity/product.entity.ts
index f3702ca..9cb7e79 100644
--- a/src/entity/product.entity.ts
+++ b/src/entity/product.entity.ts
@@ -13,6 +13,7 @@ import {
 import { ApiProperty } from '@midwayjs/swagger';
 import { DictItem } from './dict_item.entity';
 import { ProductStockComponent } from './product_stock_component.entity';
+import { ProductSiteSku } from './product_site_sku.entity';
 import { Category } from './category.entity';
 
 @Entity()
@@ -49,6 +50,10 @@ export class Product {
   @Column({ nullable: true })
   description?: string;
 
+  @ApiProperty({ example: '产品简短描述', description: '产品简短描述' })
+  @Column({ nullable: true })
+  shortDescription?: string;
+
   @ApiProperty({ description: 'sku'})
   @Column({ unique: true })
   sku: string;
@@ -82,6 +87,10 @@ export class Product {
   @OneToMany(() => ProductStockComponent, (component) => component.product, { cascade: true })
   components: ProductStockComponent[];
 
+  @ApiProperty({ description: '站点 SKU 列表', type: ProductSiteSku, isArray: true })
+  @OneToMany(() => ProductSiteSku, (siteSku) => siteSku.product, { cascade: true })
+  siteSkus: ProductSiteSku[];
+
   // 来源
   @ApiProperty({ description: '来源', example: '1' })
   @Column({ default: 0 })
diff --git a/src/entity/product_site_sku.entity.ts b/src/entity/product_site_sku.entity.ts
new file mode 100644
index 0000000..f454d60
--- /dev/null
+++ b/src/entity/product_site_sku.entity.ts
@@ -0,0 +1,36 @@
+import {
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  UpdateDateColumn,
+  Entity,
+  ManyToOne,
+  JoinColumn,
+} from 'typeorm';
+import { ApiProperty } from '@midwayjs/swagger';
+import { Product } from './product.entity';
+
+@Entity('product_site_sku')
+export class ProductSiteSku {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @ApiProperty({ description: '站点 SKU' })
+  @Column({ length: 100, comment: '站点 SKU' })
+  code: string;
+
+  @ManyToOne(() => Product, product => product.siteSkus, {
+    onDelete: 'CASCADE',
+  })
+  @JoinColumn({ name: 'productId' })
+  product: Product;
+
+  @Column()
+  productId: number;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @UpdateDateColumn()
+  updatedAt: Date;
+}
diff --git a/src/service/product.service.ts b/src/service/product.service.ts
index 36741d3..d1733ee 100644
--- a/src/service/product.service.ts
+++ b/src/service/product.service.ts
@@ -29,6 +29,7 @@ import { StockService } from './stock.service';
 import { Stock } from '../entity/stock.entity';
 import { StockPoint } from '../entity/stock_point.entity';
 import { ProductStockComponent } from '../entity/product_stock_component.entity';
+import { ProductSiteSku } from '../entity/product_site_sku.entity';
 import { Category } from '../entity/category.entity';
 import { CategoryAttribute } from '../entity/category_attribute.entity';
 
@@ -67,6 +68,9 @@ export class ProductService {
   @InjectEntityModel(ProductStockComponent)
   productStockComponentModel: Repository<ProductStockComponent>;
 
+  @InjectEntityModel(ProductSiteSku)
+  productSiteSkuModel: Repository<ProductSiteSku>;
+
   @InjectEntityModel(Category)
   categoryModel: Repository<Category>;
 
@@ -242,7 +246,8 @@ export class ProductService {
       .createQueryBuilder('product')
       .leftJoinAndSelect('product.attributes', 'attribute')
       .leftJoinAndSelect('attribute.dict', 'dict')
-      .leftJoinAndSelect('product.category', 'category');
+      .leftJoinAndSelect('product.category', 'category')
+      .leftJoinAndSelect('product.siteSkus', 'siteSku');
 
     // 模糊搜索 name,支持多个关键词
     const nameFilter = name ? name.split(' ').filter(Boolean) : [];
@@ -421,7 +426,7 @@ export class ProductService {
     const product = new Product();
 
     // 使用 merge 填充基础字段,排除特殊处理字段
-    const { attributes: _attrs, categoryId: _cid, sku: _sku, components: _components, ...simpleFields } = createProductDTO;
+    const { attributes: _attrs, categoryId: _cid, sku: _sku, components: _components, siteSkus: _siteSkus, ...simpleFields } = createProductDTO;
     this.productModel.merge(product, simpleFields);
 
     product.attributes = resolvedAttributes;
@@ -449,11 +454,22 @@ export class ProductService {
 
     const savedProduct = await this.productModel.save(product);
 
+    // 保存站点 SKU 列表
+    if (createProductDTO.siteSkus && createProductDTO.siteSkus.length > 0) {
+      const siteSkus = createProductDTO.siteSkus.map(code => {
+        const s = new ProductSiteSku();
+        s.code = code;
+        s.product = savedProduct;
+        return s;
+      });
+      await this.productSiteSkuModel.save(siteSkus);
+    }
+
     // 保存组件信息
     if (createProductDTO.components && createProductDTO.components.length > 0) {
       await this.setProductComponents(savedProduct.id, createProductDTO.components);
       // 重新加载带组件的产品
-      return await this.productModel.findOne({ where: { id: savedProduct.id }, relations: ['attributes', 'attributes.dict', 'category', 'components'] });
+      return await this.productModel.findOne({ where: { id: savedProduct.id }, relations: ['attributes', 'attributes.dict', 'category', 'components', 'siteSkus'] });
     }
 
     return savedProduct;
@@ -470,7 +486,7 @@ export class ProductService {
     }
 
     // 使用 merge 更新基础字段,排除特殊处理字段
-    const { attributes: _attrs, categoryId: _cid, sku: _sku, components: _components, ...simpleFields } = updateProductDTO;
+    const { attributes: _attrs, categoryId: _cid, sku: _sku, components: _components, siteSkus: _siteSkus, ...simpleFields } = updateProductDTO;
     this.productModel.merge(product, simpleFields);
 
     // 处理分类更新
@@ -485,6 +501,23 @@ export class ProductService {
       }
     }
 
+    // 处理站点 SKU 更新
+    if (updateProductDTO.siteSkus !== undefined) {
+      // 删除旧的 siteSkus
+      await this.productSiteSkuModel.delete({ productId: id });
+
+      // 如果有新的 siteSkus，则保存
+      if (updateProductDTO.siteSkus.length > 0) {
+        const siteSkus = updateProductDTO.siteSkus.map(code => {
+          const s = new ProductSiteSku();
+          s.code = code;
+          s.productId = id;
+          return s;
+        });
+        await this.productSiteSkuModel.save(siteSkus);
+      }
+    }
+
     // 处理 SKU 更新
     if (updateProductDTO.sku !== undefined) {
       // 校验 SKU 唯一性(如变更)
@@ -587,6 +620,7 @@ export class ProductService {
       if (updateData.name !== undefined) simpleUpdate.name = updateData.name;
       if (updateData.nameCn !== undefined) simpleUpdate.nameCn = updateData.nameCn;
       if (updateData.description !== undefined) simpleUpdate.description = updateData.description;
+      if (updateData.shortDescription !== undefined) simpleUpdate.shortDescription = updateData.shortDescription;
       if (updateData.price !== undefined) simpleUpdate.price = updateData.price;
       if (updateData.promotionPrice !== undefined) simpleUpdate.promotionPrice = updateData.promotionPrice;
 
@@ -672,7 +706,9 @@ export class ProductService {
     if (!product) throw new Error(`产品 ID ${productId} 不存在`);
     // 条件判断(单品 simple 不允许手动设置组成)
     if (product.type === 'single') {
-      throw new Error('单品无需设置组成');
+      // 单品类型,直接清空关联的组成(如果有)
+      await this.productStockComponentModel.delete({ productId });
+      return [];
     }
 
     const validItems = (items || [])
@@ -1285,6 +1321,7 @@ export class ProductService {
       price: num(rec.price),
       promotionPrice: num(rec.promotionPrice),
       type: val(rec.type),
+      siteSkus: rec.siteSkus ? String(rec.siteSkus).split(',').map(s => s.trim()).filter(Boolean) : undefined,
 
       attributes: attributes.length > 0 ? attributes : undefined,
       components: components.length > 0 ? components : undefined,
@@ -1299,6 +1336,7 @@ export class ProductService {
     dto.nameCn = data.nameCn;
     dto.description = data.description;
     dto.sku = data.sku;
+    if (data.siteSkus) dto.siteSkus = data.siteSkus;
 
     // 数值类型转换
     if (data.price !== undefined) dto.price = Number(data.price);
@@ -1325,6 +1363,7 @@ export class ProductService {
     if (data.nameCn !== undefined) dto.nameCn = data.nameCn;
     if (data.description !== undefined) dto.description = data.description;
     if (data.sku !== undefined) dto.sku = data.sku;
+    if (data.siteSkus !== undefined) dto.siteSkus = data.siteSkus;
 
     if (data.price !== undefined) dto.price = Number(data.price);
     if (data.promotionPrice !== undefined) dto.promotionPrice = Number(data.promotionPrice);
@@ -1363,6 +1402,7 @@ export class ProductService {
     // 基础数据
     const rowData = [
       esc(p.sku),
+      esc(p.siteSkus ? p.siteSkus.map(s => s.code).join(',') : ''),
       esc(p.name),
       esc(p.nameCn),
       esc(p.price),
@@ -1397,7 +1437,7 @@ export class ProductService {
   async exportProductsCSV(): Promise<string> {
     // 查询所有产品及其属性(包含字典关系)和组成
     const products = await this.productModel.find({
-      relations: ['attributes', 'attributes.dict', 'components'],
+      relations: ['attributes', 'attributes.dict', 'components', 'siteSkus'],
       order: { id: 'ASC' },
     });
 
@@ -1426,6 +1466,7 @@ export class ProductService {
     // 定义 CSV 表头(与导入字段一致)
     const baseHeaders = [
       'sku',
+      'siteSkus',
       'name',
       'nameCn',
       'price',