diff --git a/src/Eccube/Resource/template/default/Product/detail.twig b/src/Eccube/Resource/template/default/Product/detail.twig
index 72533ccb38f..e3c9e26de1a 100755
--- a/src/Eccube/Resource/template/default/Product/detail.twig
+++ b/src/Eccube/Resource/template/default/Product/detail.twig
@@ -214,6 +214,30 @@ file that was distributed with this source code.
             $('.ec-modal').hide()
         });
     </script>
+    <script type="application/ld+json">
+    {
+        "@context": "https://schema.org/",
+        "@type": "Product",
+        "name": "{{ Product.name }}",
+        "image": [
+            {% for img in Product.ProductImage %}
+                "{{ url('homepage') }}{{ asset(img, 'save_image') }}" {% if not loop.last %},{% endif %}
+
+            {% else %}
+                "{{ url('homepage') }}{{ asset(no_image_product, 'save_image') }}"
+            {% endfor %}
+        ],
+        "description": "{{ Product.description_list | default(Product.description_detail) | striptags | replace({'\n': '', '\r': ''}) }}",
+        "sku": "{{ Product.code_min }}",
+        "offers": {
+            "@type": "Offer",
+            "url": "{{ url('product_detail', {'id': Product.id}) }}",
+            "priceCurrency": "{{ eccube_config.currency }}",
+            "price": {{ Product.getPrice02IncTaxMin }},
+            "availability": "{{ Product.stock_find ? "InStock" : "OutOfStock" }}"
+        }
+    }
+    </script>
 {% endblock %}
 
 {% block main %}
diff --git a/tests/Eccube/Tests/Web/ProductControllerTest.php b/tests/Eccube/Tests/Web/ProductControllerTest.php
index eafe8f22979..e40e4831c6a 100644
--- a/tests/Eccube/Tests/Web/ProductControllerTest.php
+++ b/tests/Eccube/Tests/Web/ProductControllerTest.php
@@ -258,6 +258,33 @@ public function testProductFavoriteAddThroughLogin()
         $this->assertContains('お気に入りに追加済です', $html);
     }
 
+    /**
+     * 商品詳細ページの構造化データ
+     */
+    public function testProductStructureData()
+    {
+        $crawler = $this->client->request('GET', $this->generateUrl('product_detail', ['id' => 2]));
+        $json = json_decode(html_entity_decode($crawler->filter('script[type="application/ld+json"]')->html()));
+        $this->assertEquals('Product', $json->{'@type'});
+        $this->assertEquals('チェリーアイスサンド', $json->name);
+        $this->assertEquals(3080, $json->offers->price);
+        $this->assertEquals('InStock', $json->offers->availability);
+
+        // 在庫なし商品のテスト
+        $Product = $this->createProduct('Product no stock', 1);
+        $ProductClass = $Product->getProductClasses()->first();
+        $ProductClass->setStockUnlimited(false);
+        $ProductClass->setStock(0);
+        $ProductStock = $ProductClass->getProductStock();
+        $ProductStock->setStock(0);
+        $this->entityManager->flush();
+
+        $crawler = $this->client->request('GET', $this->generateUrl('product_detail', ['id' => $Product->getId()]));
+        $json = json_decode(html_entity_decode($crawler->filter('script[type="application/ld+json"]')->html()));
+        $this->assertEquals('Product no stock', $json->name);
+        $this->assertEquals('OutOfStock', $json->offers->availability);
+    }
+
     /**
      * 一覧ページ metaタグのテスト
      */