diff --git a/app/common/dao/store/StoreActivityDao.php b/app/common/dao/store/StoreActivityDao.php
index ef529164..b6083644 100644
--- a/app/common/dao/store/StoreActivityDao.php
+++ b/app/common/dao/store/StoreActivityDao.php
@@ -16,6 +16,7 @@ namespace app\common\dao\store;
 use app\common\dao\BaseDao;
 use app\common\dao\store\product\CloudProductDao;
 use app\common\model\store\product\CloudProduct;
+use app\common\model\store\product\Product;
 use app\common\model\store\StoreActivity;
 use app\common\model\store\StoreActivityOrderProduct;
 use app\common\repositories\store\product\SpuRepository;
@@ -77,6 +78,10 @@ class StoreActivityDao extends BaseDao
         $canBuy = 1;
         if ($products['list']) {
             $list = $products['list'];
+            $productList = array_column($list->toArray(), 'product');
+            $oldProductIds = array_column($productList, 'old_product_id');
+            $oldProductList = Product::whereIn('product_id', $oldProductIds)->field('product_id,stock')->select()->toArray();
+            $oldProductList = reset_index($oldProductList, 'product_id');
             foreach ($cloud_product_arr as $key => $value) {
                 if (!empty($userId)) {
                     $buyRecord = $this->canBuy($userId, $value['product_id']);
@@ -87,6 +92,9 @@ class StoreActivityDao extends BaseDao
                 foreach ($list as $k => $v) {
                     if ($activityId == 2) {
                         $list[$k]['limited_price'] = '2.00';
+                        if (isset($oldProductList[$v['product']['old_product_id']])) {
+                            $list[$k]['product']['stock'] = $oldProductList[$v['product']['old_product_id']]['stock'];
+                        }
                     }
                     if ($value['product_id'] == $v['product_id']) {
                         if ($value['mer_labels'] == ',5,') {
diff --git a/app/common/repositories/store/product/ProductRepository.php b/app/common/repositories/store/product/ProductRepository.php
index fade4dae..0bd2d5f5 100644
--- a/app/common/repositories/store/product/ProductRepository.php
+++ b/app/common/repositories/store/product/ProductRepository.php
@@ -17,6 +17,7 @@ use app\common\dao\store\order\StoreCartDao;
 use app\common\model\store\order\StoreOrder;
 use app\common\model\store\order\StoreOrderProduct;
 use app\common\model\store\product\CloudProduct;
+use app\common\model\store\product\Product;
 use app\common\model\store\product\ProductAttrValue;
 use app\common\model\store\product\ProductLabel;
 use app\common\model\store\product\PurchaseRecord;
@@ -1365,6 +1366,11 @@ class ProductRepository extends BaseRepository
                 $res['merchant']['village_name']=$village_name.'集体经营合作店铺';
             }
         }
+        $oldProduct = Product::where('product_id', $res['old_product_id'])->field('product_id,stock')->find();
+        $activityId = CloudProduct::where('product_id', $res['product_id'])->value('activity_id');
+        if ($activityId == 2 && isset($oldProduct['stock'])) {
+            $res['stock'] = $oldProduct['stock'];
+        }
         return $res;
     }