diff --git a/components/uni-im-msg-list/uni-im-msg-list.vue b/components/uni-im-msg-list/uni-im-msg-list.vue
index fc545f26a2d03786f7790fb93ba8e23c220dbc58..b5300692799646e848556125bee72cd5187fecc1 100644
--- a/components/uni-im-msg-list/uni-im-msg-list.vue
+++ b/components/uni-im-msg-list/uni-im-msg-list.vue
@@ -1,7 +1,7 @@
 <template>
   <view class="root">
     <uni-im-list v-if="visibleMsgList.length" class="uni-im-list" :scrollTop="scrollTop" :scroll-into-view="scrollIntoView" :paddingBottom="paddingBottom" ref="uni-im-list" @scroll="onScroll" @scrolltolower="onScrollToLower">
-     <template v-for="(msg,index) in visibleMsgList" :key="msg._id || msg.unique_id">
+     <template v-for="(msg,index) in visibleMsgList" :key="msg.unique_id || msg._id">
 		 <uni-im-list-item :ref="'item-'+index">
 		   <view v-if="index === 0" class="data-state-tip-box" @appear="beforeLoadMore">
        <uni-im-load-state v-if="canAnchor || !isMpPlatform" :status="hasMore?'loading':'noMore'"