diff --git a/beike/Shop/Services/CartService.php b/beike/Shop/Services/CartService.php
index 7645b4ed..77fca0c3 100644
--- a/beike/Shop/Services/CartService.php
+++ b/beike/Shop/Services/CartService.php
@@ -18,6 +18,8 @@ use Exception;
 
 class CartService
 {
+    private static $cartList = null;
+
     /**
      * 获取购物车商品列表
      *
@@ -27,6 +29,10 @@ class CartService
      */
     public static function list($customer, bool $selected = false): array
     {
+        if (self::$cartList !== null) {
+            return self::$cartList;
+        }
+
         $cartBuilder = CartRepo::allCartProductsBuilder($customer->id ?? 0);
         if ($selected) {
             $cartBuilder->where('selected', true);
@@ -52,7 +58,7 @@ class CartService
 
         $cartList = CartDetail::collection($cartItems)->jsonSerialize();
 
-        return hook_filter('service.cart.list', $cartList);
+        return self::$cartList = hook_filter('service.cart.list', $cartList);
     }
 
     /**