diff --git a/src/Eccube/Form/Type/Admin/OrderItemType.php b/src/Eccube/Form/Type/Admin/OrderItemType.php
index d3cf5393a03..4312524f22a 100644
--- a/src/Eccube/Form/Type/Admin/OrderItemType.php
+++ b/src/Eccube/Form/Type/Admin/OrderItemType.php
@@ -153,7 +153,18 @@ public function buildForm(FormBuilderInterface $builder, array $options)
                         'message' => 'form_error.float_only',
                     ]),
                 ],
-            ]);
+            ])
+            ->add('point_rate', HiddenType::class, [
+                'required' => false,
+                'constraints' => [
+                    new Assert\Range(['min' => 0]),
+                    new Assert\Regex([
+                        'pattern' => "/^\d+(\.\d+)?$/u",
+                        'message' => 'form_error.float_only',
+                    ]),
+                ],
+            ])
+            ;
 
         $builder
             ->add($builder->create('order_item_type', HiddenType::class)
diff --git a/src/Eccube/Resource/locale/messages.en.yaml b/src/Eccube/Resource/locale/messages.en.yaml
index 096e34d39e5..a5fe2a78205 100644
--- a/src/Eccube/Resource/locale/messages.en.yaml
+++ b/src/Eccube/Resource/locale/messages.en.yaml
@@ -824,6 +824,7 @@ admin.order.amount: Price
 admin.order.quantity: Qty
 admin.order.tax_rate: Tax
 admin.order.tax_type: Tax Type
+admin.order.point_rate: Point Rate
 admin.order.subtotal: Subtotal
 admin.order.discount: Discount
 admin.order.delivery_fee: Shipping Charge
diff --git a/src/Eccube/Resource/locale/messages.ja.yaml b/src/Eccube/Resource/locale/messages.ja.yaml
index 88d96f2e33c..32cb28db798 100644
--- a/src/Eccube/Resource/locale/messages.ja.yaml
+++ b/src/Eccube/Resource/locale/messages.ja.yaml
@@ -824,6 +824,7 @@ admin.order.amount: 金額
 admin.order.quantity: 数量
 admin.order.tax_rate: 税率
 admin.order.tax_type: 課税区分
+admin.order.point_rate: ポイント付与率
 admin.order.subtotal: 小計
 admin.order.discount: 値引き
 admin.order.delivery_fee: 送料
diff --git a/src/Eccube/Resource/template/admin/Order/edit.twig b/src/Eccube/Resource/template/admin/Order/edit.twig
index 39b7f9a1340..cc1ec273026 100644
--- a/src/Eccube/Resource/template/admin/Order/edit.twig
+++ b/src/Eccube/Resource/template/admin/Order/edit.twig
@@ -744,6 +744,7 @@ file that was distributed with this source code.
                                             {# hidden values #}
                                             {{ form_widget(orderItemForm.ProductClass) }}
                                             {{ form_widget(orderItemForm.order_item_type) }}
+                                            {{ form_widget(orderItemForm.point_rate) }}
                                             {{ form_widget(orderItemForm.tax_type) }}
                                             <!-- 商品名 -->
                                             <td class="align-middle w-25 ps-3">
diff --git a/src/Eccube/Resource/template/admin/Order/order_item_prototype.twig b/src/Eccube/Resource/template/admin/Order/order_item_prototype.twig
index 9a8553d3dc0..cc5fc2d9a7c 100644
--- a/src/Eccube/Resource/template/admin/Order/order_item_prototype.twig
+++ b/src/Eccube/Resource/template/admin/Order/order_item_prototype.twig
@@ -17,5 +17,6 @@ file that was distributed with this source code.
         {{ form_widget(orderItemForm.price) }}
         {{ form_widget(orderItemForm.quantity) }}
         {{ form_widget(orderItemForm.tax_type) }}
+        {{ form_widget(orderItemForm.point_rate) }}
     </td>
 </tr>
diff --git a/src/Eccube/Resource/template/admin/Order/order_item_type.twig b/src/Eccube/Resource/template/admin/Order/order_item_type.twig
index 6b1a597ff49..0cde622abfc 100644
--- a/src/Eccube/Resource/template/admin/Order/order_item_type.twig
+++ b/src/Eccube/Resource/template/admin/Order/order_item_type.twig
@@ -11,6 +11,12 @@ file that was distributed with this source code.
 <script>
     // 受注明細行を追加する.
     function fnAddOrderItem($row, product_id, type, product_name, tax_type) {
+        // 既存の受注明細のポイント付与率を取得する. 取得できない場合は店舗基本情報の付与率を設定する.
+        var point_rate = $('input[type=hidden][id$=point_rate]').first().val();
+        if (point_rate === undefined) {
+            point_rate = '{{ BaseInfo.basic_point_rate }}';
+        }
+
         var prototype = $collectionHolder.data('prototype');
         index++;
         var newForm = prototype.replace(/__name__/g, index);
@@ -22,6 +28,7 @@ file that was distributed with this source code.
         $($lastRow).find(formIdPrefix + index + '_order_item_type').val(type);
         $($lastRow).find(formIdPrefix + index + '_product_name').val(product_name);
         $($lastRow).find(formIdPrefix + index + '_tax_type').val(tax_type);
+        $($lastRow).find(formIdPrefix + index + '_point_rate').val(point_rate);
 
         // モーダル閉じる.
         $('#addOrderItemType').modal('hide');
diff --git a/src/Eccube/Resource/template/admin/Order/search_product.twig b/src/Eccube/Resource/template/admin/Order/search_product.twig
index 2872348d3de..76c2e490375 100644
--- a/src/Eccube/Resource/template/admin/Order/search_product.twig
+++ b/src/Eccube/Resource/template/admin/Order/search_product.twig
@@ -86,6 +86,12 @@ file that was distributed with this source code.
             }
         }
 
+        // 既存の受注明細のポイント付与率を取得する. 取得できない場合は店舗基本情報の付与率を設定する.
+        var point_rate = $('input[type=hidden][id$=point_rate]').first().val();
+        if (point_rate === undefined) {
+            point_rate = '{{ BaseInfo.basic_point_rate }}';
+        }
+
         var prototype = $collectionHolder.data('prototype');
         index++;
         var newForm = prototype.replace(/__name__/g, index);
@@ -97,6 +103,7 @@ file that was distributed with this source code.
         $($lastRow).find(formIdPrefix + index + '_quantity').val(quantity);
         $($lastRow).find(formIdPrefix + index + '_order_item_type').val(type);
         $($lastRow).find(formIdPrefix + index + '_product_name').val(product_name);
+        $($lastRow).find(formIdPrefix + index + '_point_rate').val(point_rate);
 
         // モーダル閉じる.
         $('#searchProductModal').modal('hide');
diff --git a/src/Eccube/Resource/template/admin/Order/shipping.twig b/src/Eccube/Resource/template/admin/Order/shipping.twig
index f95460690e2..467106a295a 100644
--- a/src/Eccube/Resource/template/admin/Order/shipping.twig
+++ b/src/Eccube/Resource/template/admin/Order/shipping.twig
@@ -557,6 +557,7 @@ file that was distributed with this source code.
                                                     {# hidden values #}
                                                     {{ form_widget(orderItemForm.ProductClass) }}
                                                     {{ form_widget(orderItemForm.order_item_type) }}
+                                                    {{ form_widget(orderItemForm.point_rate) }}
                                                     {{ form_widget(orderItemForm.tax_type) }}
                                                     {{ form_widget(orderItemForm.tax_rate, {'type': 'hidden'}) }}
                                                     <td class="align-middle w-25 ps-3">
diff --git a/src/Eccube/Service/PointHelper.php b/src/Eccube/Service/PointHelper.php
index 3b006612004..6bc0cb8c988 100644
--- a/src/Eccube/Service/PointHelper.php
+++ b/src/Eccube/Service/PointHelper.php
@@ -122,9 +122,20 @@ public function addPointDiscountItem(ItemHolderInterface $itemHolder, $discount)
         $TaxInclude = $this->entityManager->find(TaxDisplayType::class, TaxDisplayType::INCLUDED);
         $Taxation = $this->entityManager->find(TaxType::class, TaxType::NON_TAXABLE);
 
+        // 商品明細に保持しているポイント付与率を取得して設定する.
+        // 商品明細が取得できない場合は店舗基本情報のポイント付与率を設定する.
+        $Baseinfo = $this->baseInfoRepository->get();
+        $pointRate = $Baseinfo->getBasicPointRate();
+        // 商品別ポイントは未実装なので, 商品明細のポイント付与率はすべて同じ値が設定されているはず
+        $ProductOrderItem = $itemHolder->getItems()->getProductClasses()->current();
+        if ($ProductOrderItem instanceof OrderItem && $ProductOrderItem->getPointRate() !== null) {
+            $pointRate = $ProductOrderItem->getPointRate();
+        }
+
         $OrderItem = new OrderItem();
         $OrderItem->setProductName($DiscountType->getName())
             ->setPrice($discount)
+            ->setPointRate($pointRate)
             ->setQuantity(1)
             ->setTax(0)
             ->setTaxRate(0)
diff --git a/src/Eccube/Service/PurchaseFlow/Processor/AddPointProcessor.php b/src/Eccube/Service/PurchaseFlow/Processor/AddPointProcessor.php
index 0c0de3daa39..7943ff662b3 100644
--- a/src/Eccube/Service/PurchaseFlow/Processor/AddPointProcessor.php
+++ b/src/Eccube/Service/PurchaseFlow/Processor/AddPointProcessor.php
@@ -17,6 +17,7 @@
 use Eccube\Entity\ItemHolderInterface;
 use Eccube\Entity\ItemInterface;
 use Eccube\Entity\Order;
+use Eccube\Entity\OrderItem;
 use Eccube\Repository\BaseInfoRepository;
 use Eccube\Service\PurchaseFlow\ItemHolderPostValidator;
 use Eccube\Service\PurchaseFlow\PurchaseContext;
@@ -70,7 +71,9 @@ private function calculateAddPoint(ItemHolderInterface $itemHolder)
         // 明細ごとのポイントを集計
         $totalPoint = array_reduce($itemHolder->getItems()->toArray(),
             function ($carry, ItemInterface $item) use ($basicPointRate) {
-                $pointRate = $item->isProduct() ? $item->getProductClass()->getPointRate() : null;
+
+                $pointRate = $item->getPointRate() ? $item->getPointRate() : null;
+
                 if ($pointRate === null) {
                     $pointRate = $basicPointRate;
                 }