diff --git a/packages/taro-platform-harmony-hybrid/src/api/apis/wxml/IntersectionObserver.ts b/packages/taro-platform-harmony-hybrid/src/api/apis/wxml/IntersectionObserver.ts
index 6df1e1739db0..687bfa30d21e 100644
--- a/packages/taro-platform-harmony-hybrid/src/api/apis/wxml/IntersectionObserver.ts
+++ b/packages/taro-platform-harmony-hybrid/src/api/apis/wxml/IntersectionObserver.ts
@@ -61,6 +61,7 @@ export class TaroHarmonyHybridIntersectionObserver implements Taro.IntersectionO
           // 使用时间戳而不是entry.time，跟微信小程序一致
           time: Date.now(),
           id: entry.target.id,
+          // eslint-disable-next-line dot-notation
           dataset: entry.target['dataset']
         }
         // web端会默认首次触发
@@ -125,7 +126,7 @@ export class TaroHarmonyHybridIntersectionObserver implements Taro.IntersectionO
   }
 
   public relativeToViewport (margins?: Taro.IntersectionObserver.RelativeToViewportMargins | undefined): Taro.IntersectionObserver {
-    return this.relativeTo('.taro_page', margins)
+    return this.relativeTo('.taro_router', margins)
   }
 
   private _getCallbackByElement (element: Element) {