diff --git a/yami-shop-service/src/main/java/com/yami/shop/dao/CategoryBrandMapper.java b/yami-shop-service/src/main/java/com/yami/shop/dao/CategoryBrandMapper.java
new file mode 100644
index 0000000..87c9a0d
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+++ b/yami-shop-service/src/main/java/com/yami/shop/dao/CategoryBrandMapper.java
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+/*
+ * Copyright (c) 2018-2999 广州市蓝海创新科技有限公司 All rights reserved.
+ *
+ * https://www.mall4j.com/
+ *
+ * 未经允许，不可做商业用途！
+ *
+ * 版权所有，侵权必究！
+ */
+
+package com.yami.shop.dao;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.yami.shop.bean.model.CategoryBrand;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * 分类品牌Mapper接口，定义了与分类品牌相关的数据库操作
+ *
+ * @author lanhai
+ */
+public interface CategoryBrandMapper extends BaseMapper<CategoryBrand> {
+
+	/**
+	 * 批量插入分类品牌关系
+	 * @param categoryId 分类ID
+	 * @param brandIds 品牌ID列表
+	 */
+	void insertCategoryBrand(@Param("categoryId") Long categoryId, @Param("brandIds") List<Long> brandIds);
+
+	/**
+	 * 根据分类ID删除分类品牌关系
+	 * @param categoryId 分类ID
+	 */
+	void deleteByCategoryId(Long categoryId);
+
+	/**
+	 * 根据品牌ID删除分类品牌关系
+	 * @param brandId 品牌ID
+	 */
+	void deleteByBrandId(Long brandId);
+}
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