diff --git a/simple-mind-map/src/core/view/View.js b/simple-mind-map/src/core/view/View.js
index af0c93ee..09640aa2 100644
--- a/simple-mind-map/src/core/view/View.js
+++ b/simple-mind-map/src/core/view/View.js
@@ -106,7 +106,7 @@ class View {
         }
       } else {
         // 2.鼠标滚轮事件控制画布移动
-        const step = isTouchPad ? 5 : mousewheelMoveStep
+        const step = isTouchPad ? 10 : mousewheelMoveStep
         let mx = 0
         let my = 0
         // 上移