diff --git a/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/ProductSpuService.java b/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/ProductSpuService.java
index 047c3b788..17256f3d6 100644
--- a/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/ProductSpuService.java
+++ b/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/ProductSpuService.java
@@ -14,4 +14,6 @@ public interface ProductSpuService {
 
     CommonResult<Boolean> updateProductSpu(Integer adminId, ProductSpuUpdateDTO productSpuUpdateDTO);
 
+
+
 }
diff --git a/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/constant/ProductErrorCodeEnum.java b/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/constant/ProductErrorCodeEnum.java
index 4808658a3..122cd2e54 100644
--- a/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/constant/ProductErrorCodeEnum.java
+++ b/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/constant/ProductErrorCodeEnum.java
@@ -19,7 +19,7 @@ public enum ProductErrorCodeEnum {
     PRODUCT_SKU_ATTR_CANT_NOT_DUPLICATE(1003002000, "一个 Sku 下，不能有重复的规格"),
     PRODUCT_SPU_ATTR_NUMBERS_MUST_BE_EQUALS(1003002001, "一个 Spu 下的每个 Sku ，其规格数必须一致"),
     PRODUCT_SPU_SKU__NOT_DUPLICATE(1003002002, "一个 Spu 下的每个 Sku ，必须不重复"),
-
+    PRODUCT_SPU_NOT_EXISTS(1003002003, "Spu 不存在"),
 
     // ========== PRODUCT ATTR + ATTR_VALUE 模块 ==========
     PRODUCT_ATTR_VALUE_NOT_EXIST(1003003000, "商品属性值不存在"),
diff --git a/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/dto/ProductSpuUpdateDTO.java b/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/dto/ProductSpuUpdateDTO.java
index 07566ae2d..4021f7fb0 100644
--- a/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/dto/ProductSpuUpdateDTO.java
+++ b/product/product-service-api/src/main/java/cn/iocoder/mall/product/api/dto/ProductSpuUpdateDTO.java
@@ -34,7 +34,7 @@ public class ProductSpuUpdateDTO {
     /**
      * 分类编号
      */
-    @NotEmpty(message = "分类不能为空")
+    @NotNull(message = "分类不能为空")
     private Integer cid;
     /**
      * 商品主图地址
diff --git a/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dao/ProductSkuMapper.java b/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dao/ProductSkuMapper.java
index 936161507..2069e02f7 100644
--- a/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dao/ProductSkuMapper.java
+++ b/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dao/ProductSkuMapper.java
@@ -11,6 +11,13 @@ public interface ProductSkuMapper {
 
     ProductSkuDO selectById(Integer id);
 
+    List<ProductSkuDO> selectListBySpuIdAndStatus(@Param("spuId") Integer spuId,
+                                                  @Param("status") Integer status);
+
     void insertList(@Param("productSkuDOs") List<ProductSkuDO> productSkuDOs);
 
+    int update(ProductSkuDO productSkuDO);
+
+    int updateToDeleted(@Param("ids") List<Integer> ids);
+
 }
\ No newline at end of file
diff --git a/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dataobject/ProductSkuDO.java b/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dataobject/ProductSkuDO.java
index 6ee66af63..8ab2d4c4b 100644
--- a/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dataobject/ProductSkuDO.java
+++ b/product/product-service-impl/src/main/java/cn/iocoder/mall/product/dataobject/ProductSkuDO.java
@@ -43,7 +43,7 @@ public class ProductSkuDO extends BaseDO {
      * 库存数量
      */
     private Integer quantity;
-    //    /**
+//    /**
 //     * 商品在付款减库存的状态下，该Sku上未付款的订单数量
 //     */
 //    private Integer withHoldQuantity;
diff --git a/product/product-service-impl/src/main/java/cn/iocoder/mall/product/service/ProductSpuServiceImpl.java b/product/product-service-impl/src/main/java/cn/iocoder/mall/product/service/ProductSpuServiceImpl.java
index 1892f8a04..9bf868b21 100644
--- a/product/product-service-impl/src/main/java/cn/iocoder/mall/product/service/ProductSpuServiceImpl.java
+++ b/product/product-service-impl/src/main/java/cn/iocoder/mall/product/service/ProductSpuServiceImpl.java
@@ -1,6 +1,7 @@
 package cn.iocoder.mall.product.service;
 
 import cn.iocoder.common.framework.dataobject.BaseDO;
+import cn.iocoder.common.framework.util.CollectionUtil;
 import cn.iocoder.common.framework.util.ServiceExceptionUtil;
 import cn.iocoder.common.framework.util.StringUtil;
 import cn.iocoder.common.framework.vo.CommonResult;
@@ -11,6 +12,7 @@ import cn.iocoder.mall.product.api.bo.ProductSpuDetailBO;
 import cn.iocoder.mall.product.api.constant.ProductErrorCodeEnum;
 import cn.iocoder.mall.product.api.constant.ProductSpuConstants;
 import cn.iocoder.mall.product.api.dto.ProductSkuAddDTO;
+import cn.iocoder.mall.product.api.dto.ProductSkuUpdateDTO;
 import cn.iocoder.mall.product.api.dto.ProductSpuAddDTO;
 import cn.iocoder.mall.product.api.dto.ProductSpuUpdateDTO;
 import cn.iocoder.mall.product.convert.ProductSpuConvert;
@@ -90,7 +92,12 @@ public class ProductSpuServiceImpl implements ProductSpuService {
 
     @SuppressWarnings("Duplicates")
     @Override
+    @Transactional
     public CommonResult<Boolean> updateProductSpu(Integer adminId, ProductSpuUpdateDTO productSpuUpdateDTO) {
+        // 校验 Spu 是否存在
+        if (productSpuMapper.selectById(productSpuUpdateDTO.getId()) == null) {
+            return ServiceExceptionUtil.error(ProductErrorCodeEnum.PRODUCT_SPU_NOT_EXISTS.getCode());
+        }
         // 校验商品分类分类存在
         CommonResult<ProductCategoryDO> validCategoryResult = productCategoryService.validProductCategory(productSpuUpdateDTO.getCid());
         if (validCategoryResult.isError()) {
@@ -107,6 +114,44 @@ public class ProductSpuServiceImpl implements ProductSpuService {
         ProductSpuDO updateSpu = ProductSpuConvert.INSTANCE.convert(productSpuUpdateDTO)
                 .setPicUrls(StringUtil.join(productSpuUpdateDTO.getPicUrls(), ","));
         productSpuMapper.update(updateSpu);
+        // 修改 Sku
+        List<ProductSkuDO> existsSkus = productSkuMapper.selectListBySpuIdAndStatus(productSpuUpdateDTO.getId(), ProductSpuConstants.SKU_STATUS_ENABLE);
+        List<ProductSkuDO> insertSkus = new ArrayList<>(0); // 1、找不到，进行插入
+        List<Integer> deleteSkus = new ArrayList<>(0); // 2、多余的，删除
+        List<ProductSkuDO> updateSkus = new ArrayList<>(0); // 3、找的到，进行更新。
+        for (ProductSkuUpdateDTO skuUpdateDTO : productSpuUpdateDTO.getSkus()) {
+            ProductSkuDO existsSku = findProductSku(skuUpdateDTO.getAttrs(), existsSkus);
+            // 3、找的到，进行更新。
+            if (existsSku != null) {
+                // 移除
+                existsSkus.remove(existsSku);
+                // 创建 ProductSkuDO
+                updateSkus.add(ProductSpuConvert.INSTANCE.convert(skuUpdateDTO).setId(existsSku.getId()));
+                continue;
+            }
+            // 1、找不到，进行插入
+            ProductSkuDO insertSku = ProductSpuConvert.INSTANCE.convert(skuUpdateDTO)
+                    .setSpuId(productSpuUpdateDTO.getId()).setStatus(ProductSpuConstants.SKU_STATUS_ENABLE).setAttrs(StringUtil.join(skuUpdateDTO.getAttrs(), ","));
+            insertSku.setCreateTime(new Date()).setDeleted(BaseDO.DELETED_NO);
+            insertSkus.add(insertSku);
+        }
+        // 2、多余的，删除
+        if (!existsSkus.isEmpty()) {
+            deleteSkus.addAll(existsSkus.stream().map(ProductSkuDO::getId).collect(Collectors.toList()));
+        }
+        // 执行修改 Sku
+        if (!insertSkus.isEmpty()) {
+            productSkuMapper.insertList(insertSkus);
+        }
+        if (!updateSkus.isEmpty()) {
+            updateSkus.forEach(productSkuDO -> productSkuMapper.update(productSkuDO));
+        }
+        if (!deleteSkus.isEmpty()) {
+            productSkuMapper.updateToDeleted(deleteSkus);
+        }
+//        if (true) {
+//            throw new RuntimeException("test");
+//        }
         // 校验 Sku 规格
         return CommonResult.success(true);
     }
@@ -140,4 +185,19 @@ public class ProductSpuServiceImpl implements ProductSpuService {
         return CommonResult.success(true);
     }
 
+    private ProductSkuDO findProductSku(Collection<Integer> attrs, List<ProductSkuDO> skus) {
+        if (CollectionUtil.isEmpty(skus)) {
+            return null;
+        }
+        // 创建成 Set ，方便后面比较
+        attrs = new HashSet<>(attrs);
+        for (ProductSkuDO sku : skus) {
+            Set<Integer> skuAttrs = StringUtil.split(sku.getAttrs(), ",").stream().map(Integer::parseInt).collect(Collectors.toSet());
+            if (attrs.equals(skuAttrs)) {
+                return sku;
+            }
+        }
+        return null;
+    }
+
 }
\ No newline at end of file
diff --git a/product/product-service-impl/src/main/resources/mapper/ProductSkuMapper.xml b/product/product-service-impl/src/main/resources/mapper/ProductSkuMapper.xml
index 983835d57..ce3c19b08 100644
--- a/product/product-service-impl/src/main/resources/mapper/ProductSkuMapper.xml
+++ b/product/product-service-impl/src/main/resources/mapper/ProductSkuMapper.xml
@@ -2,11 +2,17 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="cn.iocoder.mall.product.dao.ProductSkuMapper">
 
+    <sql id="FIELDS">
+        id, spu_id, status, pic_url, attrs,
+        price, quantity, create_time
+    </sql>
+
     <select id="selectById" parameterType="Integer" resultType="ProductSkuDO">
         SELECT
-          id
+            <include refid="FIELDS" />
         FROM product_sku
         WHERE id = #{id}
+        AND delete = 0
     </select>
 
     <insert id="insertList" useGeneratedKeys="true" keyColumn="id" keyProperty="id">
@@ -21,4 +27,50 @@
         </foreach>
     </insert>
 
+    <select id="selectListBySpuIdAndStatus" resultType="ProductSkuDO">
+      SELECT
+          <include refid="FIELDS" />
+      FROM product_sku
+      WHERE spu_id = #{spuId}
+      AND status = #{status}
+      AND deleted = 0
+    </select>
+
+    <update id="update" parameterType="ProductSpuDO">
+        UPDATE product_sku
+        <set>
+            <if test="spuId != null">
+                spu_id = #{spuId},
+            </if>
+            <if test="status != null">
+                status = #{status},
+            </if>
+            <if test="picUrl != null">
+                pic_url = #{picUrl},
+            </if>
+            <if test="attrs != null">
+                attrs = #{attrs},
+            </if>
+            <if test="price != null">
+                price = #{price},
+            </if>
+            <if test="quantity != null">
+                quantity = #{quantity},
+            </if>
+            <if test="deleted != null">
+                deleted = #{deleted}
+            </if>
+        </set>
+        WHERE id = #{id}
+    </update>
+
+    <update id="updateToDeleted" parameterType="Integer">
+        UPDATE product_sku
+        SET deleted = 1
+        WHERE id IN
+            <foreach item="id" collection="ids" separator="," open="(" close=")" index="">
+                #{id}
+            </foreach>
+    </update>
+
 </mapper>
\ No newline at end of file
diff --git a/product/product-service-impl/src/main/resources/mapper/ProductSpuMapper.xml b/product/product-service-impl/src/main/resources/mapper/ProductSpuMapper.xml
index bc2e16f5e..d5b04aa49 100644
--- a/product/product-service-impl/src/main/resources/mapper/ProductSpuMapper.xml
+++ b/product/product-service-impl/src/main/resources/mapper/ProductSpuMapper.xml
@@ -19,8 +19,35 @@
         )
     </insert>
 
-    <update id="update">
-
+    <update id="update" parameterType="ProductSpuDO">
+        UPDATE product_spu
+        <set>
+            <if test="name != null">
+                name = #{name},
+            </if>
+            <if test="sellPoint != null">
+                sell_point = #{sellPoint},
+            </if>
+            <if test="description != null">
+                description = #{description},
+            </if>
+            <if test="cid != null">
+                cid = #{cid},
+            </if>
+            <if test="picUrls != null">
+                pic_urls = #{picUrls},
+            </if>
+            <if test="visible != null">
+                visible = #{visible},
+            </if>
+            <if test="sort != null">
+                sort = #{sort},
+            </if>
+            <if test="deleted != null">
+                deleted = #{deleted}
+            </if>
+        </set>
+        WHERE id = #{id}
     </update>
 
 </mapper>
\ No newline at end of file