diff --git a/src/main/java/com/example/building/service/impl/ProductServiceImpl.java b/src/main/java/com/example/building/service/impl/ProductServiceImpl.java
index 1fbcdc5..771f257 100644
--- a/src/main/java/com/example/building/service/impl/ProductServiceImpl.java
+++ b/src/main/java/com/example/building/service/impl/ProductServiceImpl.java
@@ -68,9 +68,16 @@ public class ProductServiceImpl implements ProductService {
 
     /**
      * 删除分类
+     * 需要先处理关联的产品（硬删除已软删除的产品）
      */
     @Override
     public void deleteCategory(String id) {
+        // 先将关联该分类的产品的 category_id 置空（处理软删除的产品）
+        Product product = new Product();
+        product.setCategoryId(null);
+        productMapper.update(product, new LambdaQueryWrapper<Product>()
+                .eq(Product::getCategoryId, id));
+        // 再删除分类
         categoryMapper.deleteById(id);
     }