diff --git a/changelog.md b/changelog.md
index d480587b1..c23791f5b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,6 @@
 # 更新日志
 2.0(2020-09)
+- 修复区间滑块setEnable(false)滑块不灰化的问题
 - 修复同步复选下拉框系列setValue所有值后触发器不显示全选的问题
 - BI.Tree.traversal方法迭代函数增加父节点参数
 
diff --git a/src/widget/intervalslider/intervalslider.js b/src/widget/intervalslider/intervalslider.js
index e8b09fcc4..ff1b98db2 100644
--- a/src/widget/intervalslider/intervalslider.js
+++ b/src/widget/intervalslider/intervalslider.js
@@ -483,10 +483,10 @@ BI.IntervalSlider = BI.inherit(BI.Single, {
             this.valueOne = minNumber;
             this.valueTwo = maxNumber;
             this.precision = this._getPrecision();
-            this._setDraggableEnable(true);
+            this.setEnable(true);
         }
         if (maxNumber === minNumber) {
-            this._setDraggableEnable(false);
+            this.setEnable(false);
         }
     },