diff --git a/lib/component/helper/RoamController.js b/lib/component/helper/RoamController.js
index 95366713472f3ec5f3649547bb1fe202b806a2e6..e91f99229d554e79077486e1caf3602c8702ea66 100644
--- a/lib/component/helper/RoamController.js
+++ b/lib/component/helper/RoamController.js
@@ -305,9 +305,8 @@ var RoamController = /** @class */function (_super) {
     if (interactionMutex.isTaken(this._zr, 'globalPan') || eventConsumed(e)) {
       return;
     }
-    var scale = e.pinchScale > 1 ? 1.1 : 1 / 1.1;
     this._checkTriggerMoveZoom(this, 'zoom', null, e, {
-      scale: scale,
+      scale: e.pinchScale,
       originX: e.pinchX,
       originY: e.pinchY,
       isAvailableBehavior: null