diff --git a/src/platforms/mp-weixin/helpers/system-info.js b/src/platforms/mp-weixin/helpers/system-info.js
index 216e0e9d56b98952830784e1643fd0eea976feff..d50013a53551290cffaa8ba13f92001e1868a426 100644
--- a/src/platforms/mp-weixin/helpers/system-info.js
+++ b/src/platforms/mp-weixin/helpers/system-info.js
@@ -19,7 +19,7 @@ function addSafeAreaInsets (result) {
       top: safeArea.top,
       left: safeArea.left,
       right: result.windowWidth - safeArea.right,
-      bottom: result.windowHeight - safeArea.bottom
+      bottom: Math.abs(result.screenHeight - safeArea.bottom)
     }
   }
 }