diff --git a/src/components/common/card.vue b/src/components/common/card.vue
index fabc9d9..e78701c 100644
--- a/src/components/common/card.vue
+++ b/src/components/common/card.vue
@@ -116,10 +116,19 @@ const addCart = async (val) => {
     
     let res = await marketplaceList.getCartListState()
     if (res.data && res.data.length) {
+      let exists = res.data.find(item => {
+        return item.nft.token_id == val.nft.token_id && item.nft.contract_address == val.nft.contract_address
+      })
+      if (exists) {
+        alert('already in the shopping cart')
+        return
+      }
+
       const currency = res.data[0].event?.data?.buy[0].contract_address || ''
       const type = res.data[0].event?.data?.buy[0].item_type || ''
       const currentCurrency = val.event?.data?.buy[0].contract_address || ''
       const currentType = val.event?.data?.buy[0].item_type || ''
+
       if (currency != currentCurrency || type != currentType) {
         // TODO: 提示用户添加相同类型的商品
         alert('Please add the same type of item to the shopping cart')