diff --git a/apps/shopping/views/partial/cart/stepper.hbs b/apps/shopping/views/partial/cart/stepper.hbs
index 7a94369..c74e2af 100644
--- a/apps/shopping/views/partial/cart/stepper.hbs
+++ b/apps/shopping/views/partial/cart/stepper.hbs
@@ -3,7 +3,7 @@
         <span class="iconfont">&#xe621;</span>
     </div>
     <div class="num">
-        <input type="text" class="input" value={{buy_number}} />
+        <input type="text" class="input" value={{buy_number}} readonly="readonly" />
     </div>
     <div class="plus action {{#isEqual left_number 0}}disable{{/isEqual}}">
         <span class="iconfont">&#xe61f;</span>