diff --git a/docs/component/ad-rewarded-video.md b/docs/component/ad-rewarded-video.md
index b586f1f5d6276f5428b702def63b1b72a3da6592..634d56737572df98af74ba6d97b0f8032d33bb1f 100644
--- a/docs/component/ad-rewarded-video.md
+++ b/docs/component/ad-rewarded-video.md
@@ -497,7 +497,7 @@ const ProviderType = {
   KS: "ks"
 };
 
-const collectionName = "uni-ad-callback-log";
+const collectionName = "uni-ad-callback-log"; // 如果选择了腾讯云，需要手动预创建表
 
 class DB {