diff --git a/src/Eccube/Resource/template/default/Product/detail.twig b/src/Eccube/Resource/template/default/Product/detail.twig
index 5c27c358cc2..ca792b54974 100755
--- a/src/Eccube/Resource/template/default/Product/detail.twig
+++ b/src/Eccube/Resource/template/default/Product/detail.twig
@@ -250,14 +250,14 @@ file that was distributed with this source code.
 
                     <div class="item_visual">
                         {% for ProductImage in Product.ProductImage %}
-                            <div class="slide-item"><img src="{{ asset(ProductImage, 'save_image') }}"></div>
+                            <div class="slide-item"><img src="{{ asset(ProductImage, 'save_image') }}" alt="{{ loop.first ? Product.name : '' }}"></div>
                         {% else %}
-                            <div class="slide-item"><img src="{{ asset(''|no_image_product, 'save_image') }}"/></div>
+                            <div class="slide-item"><img src="{{ asset(''|no_image_product, 'save_image') }}" alt="{{ loop.first ? Product.name : '' }}" /></div>
                         {% endfor %}
                     </div>
                     <div class="item_nav">
                         {% for ProductImage in Product.ProductImage %}
-                            <div class="slideThumb" data-index="{{ loop.index0 }}"><img src="{{ asset(ProductImage, 'save_image') }}"></div>
+                            <div class="slideThumb" data-index="{{ loop.index0 }}"><img src="{{ asset(ProductImage, 'save_image') }}" alt=""></div>
                         {% endfor %}
                     </div>
                 </div>
diff --git a/src/Eccube/Resource/template/default/Product/list.twig b/src/Eccube/Resource/template/default/Product/list.twig
index 9f47f2d03cf..998b9c33885 100644
--- a/src/Eccube/Resource/template/default/Product/list.twig
+++ b/src/Eccube/Resource/template/default/Product/list.twig
@@ -154,7 +154,7 @@ file that was distributed with this source code.
                         <li class="ec-shelfGrid__item">
                             <a href="{{ url('product_detail', {'id': Product.id}) }}">
                                 <p class="ec-shelfGrid__item-image">
-                                    <img src="{{ asset(Product.main_list_image|no_image_product, 'save_image') }}" loading="lazy">
+                                    <img src="{{ asset(Product.main_list_image|no_image_product, 'save_image') }}" alt="{{ Product.name }}" loading="lazy">
                                 </p>
                                 <p>{{ Product.name }}</p>
                                 {% if Product.description_list %}