diff --git a/changelog.md b/changelog.md
index 251859dd5..1c0dec991 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,4 +1,7 @@
 # 更新日志
+2.0(2020-1)
+- 修复单值系滑块滑动松手后发两次EVENT_CHANGE的问题
+
 2.0(2019-12)
 - 修复多层级单选下拉树主动设置container后搜索面板弹出问题
 - bi.search_editor支持搜索中间含有空格的字符串
diff --git a/src/widget/singleslider/singleslider.js b/src/widget/singleslider/singleslider.js
index c3c8e2c6e..88830da4c 100644
--- a/src/widget/singleslider/singleslider.js
+++ b/src/widget/singleslider/singleslider.js
@@ -173,7 +173,6 @@ BI.SingleSlider = BI.inherit(BI.Single, {
             }
             widget.element.removeClass("dragging");
             mouseMoveTracker.releaseMouseMoves();
-            self.fireEvent(BI.SingleSlider.EVENT_CHANGE);
         }, window);
         widget.element.on("mousedown", function (event) {
             if(!widget.isEnabled()) {
diff --git a/src/widget/singleslider/singleslider.label.js b/src/widget/singleslider/singleslider.label.js
index 034d22f14..ca0c421a8 100644
--- a/src/widget/singleslider/singleslider.label.js
+++ b/src/widget/singleslider/singleslider.label.js
@@ -158,7 +158,6 @@ BI.SingleSliderLabel = BI.inherit(BI.Single, {
             }
             widget.element.removeClass("dragging");
             mouseMoveTracker.releaseMouseMoves();
-            self.fireEvent(BI.SingleSliderLabel.EVENT_CHANGE);
         }, window);
         widget.element.on("mousedown", function (event) {
             if(!widget.isEnabled()) {
diff --git a/src/widget/singleslider/singleslider.normal.js b/src/widget/singleslider/singleslider.normal.js
index 347906fae..ef4b23de8 100644
--- a/src/widget/singleslider/singleslider.normal.js
+++ b/src/widget/singleslider/singleslider.normal.js
@@ -124,7 +124,6 @@ BI.SingleSliderNormal = BI.inherit(BI.Single, {
             }
             widget.element.removeClass("dragging");
             mouseMoveTracker.releaseMouseMoves();
-            self.fireEvent(BI.SingleSlider.EVENT_CHANGE);
         }, window);
         widget.element.on("mousedown", function (event) {
             if(!widget.isEnabled()) {