diff --git a/demo/js/widget/multitree/demo.multi_tree_combo.js b/demo/js/widget/multitree/demo.multi_tree_combo.js
index fcc9107cb..c3e0ffaa4 100644
--- a/demo/js/widget/multitree/demo.multi_tree_combo.js
+++ b/demo/js/widget/multitree/demo.multi_tree_combo.js
@@ -38,7 +38,15 @@ Demo.MultiTreeCombo = BI.inherit(BI.Widget, {
                 width: 300,
                 value: {
                     "根目录": {}
-                }
+                },
+                listeners: [
+                    {
+                        eventName: "EVENT_CONFIRM",
+                        action: function () {
+                            console.log("EVENT_CONFIRM", this.getValue());
+                        }
+                    }
+                ]
             }, {
                 type: "bi.button",
                 text: "getValue",
@@ -52,4 +60,4 @@ Demo.MultiTreeCombo = BI.inherit(BI.Widget, {
     }
 });
 
-BI.shortcut("demo.multi_tree_combo", Demo.MultiTreeCombo);
\ No newline at end of file
+BI.shortcut("demo.multi_tree_combo", Demo.MultiTreeCombo);
diff --git a/src/widget/multitree/multi.tree.combo.js b/src/widget/multitree/multi.tree.combo.js
index d48e8d6db..8e1e289c1 100644
--- a/src/widget/multitree/multi.tree.combo.js
+++ b/src/widget/multitree/multi.tree.combo.js
@@ -82,6 +82,7 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
                         self.numberCounter.setButtonChecked(val);
                         self.storeValue = { value: self.combo.getValue() };
                         self.fireEvent(BI.MultiTreeCombo.EVENT_CLICK_ITEM, self.combo.getValue());
+                        self._dataChange = true;
                     }
                 }, {
                     eventName: BI.MultiTreePopup.EVENT_CLICK_CONFIRM,
@@ -92,6 +93,7 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
                     eventName: BI.MultiTreePopup.EVENT_CLICK_CLEAR,
                     action: function () {
                         clear = true;
+                        self._dataChange = true;
                         self.setValue();
                         self._defaultState();
                     }
@@ -180,12 +182,16 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
             this.getSearcher().setState(checked ? BI.Selection.Multi : BI.Selection.None);
             self.numberCounter.setButtonChecked(val);
             self.fireEvent(BI.MultiTreeCombo.EVENT_CLICK_ITEM, self.combo.getValue());
+            self._dataChange = true;
         });
 
         this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW, function () {
             if (isSearching()) {
                 return;
             }
+            if (!this.isViewVisible()) {
+                self._dataChange = false; // 标记数据是否发生变化
+            }
             if (change === true) {
                 self.storeValue = { value: self.combo.getValue() };
                 change = false;
@@ -198,7 +204,7 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
         this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW, function () {
             if (isSearching()) {
                 self._stopEditing();
-                self.fireEvent(BI.MultiTreeCombo.EVENT_CONFIRM);
+                self._dataChange && self.fireEvent(BI.MultiTreeCombo.EVENT_CONFIRM);
             } else {
                 if (isPopupView()) {
                     self._stopEditing();
@@ -206,7 +212,7 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
                     if (clear === true) {
                         self.storeValue = { value: {} };
                     }
-                    self.fireEvent(BI.MultiTreeCombo.EVENT_CONFIRM);
+                    self._dataChange && self.fireEvent(BI.MultiTreeCombo.EVENT_CONFIRM);
                 }
             }
             clear = false;
diff --git a/src/widget/multitree/multi.tree.insert.combo.js b/src/widget/multitree/multi.tree.insert.combo.js
index c9ce5545f..6db34dc61 100644
--- a/src/widget/multitree/multi.tree.insert.combo.js
+++ b/src/widget/multitree/multi.tree.insert.combo.js
@@ -56,6 +56,7 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
                             self.combo.setValue(self.storeValue);
                             self.numberCounter.setValue(self.storeValue);
                             self._stopEditing();
+                            self._dataChange = true;
                         }
                     }]
                 }
@@ -99,6 +100,7 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
                         self.numberCounter.setButtonChecked(val);
                         self.storeValue = { value: self.combo.getValue() };
                         self.fireEvent(BI.MultiTreeInsertCombo.EVENT_CLICK_ITEM, self.getValue());
+                        self._dataChange = true;
                     }
                 }, {
                     eventName: BI.MultiTreePopup.EVENT_CLICK_CONFIRM,
@@ -109,6 +111,7 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
                     eventName: BI.MultiTreePopup.EVENT_CLICK_CLEAR,
                     action: function () {
                         clear = true;
+                        self._dataChange = true;
                         self.setValue();
                         self._defaultState();
                     }
@@ -192,12 +195,16 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
             this.getSearcher().setState(checked ? BI.Selection.Multi : BI.Selection.None);
             self.numberCounter.setButtonChecked(val);
             self.fireEvent(BI.MultiTreeInsertCombo.EVENT_CLICK_ITEM, self.combo.getValue());
+            self._dataChange = true;
         });
 
         this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW, function () {
             if (isSearching()) {
                 return;
             }
+            if (!this.isViewVisible()) {
+                self._dataChange = false; // 标记数据是否发生变化
+            }
             if (change === true) {
                 self.storeValue = { value: self.combo.getValue() };
                 change = false;
@@ -210,7 +217,7 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
         this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW, function () {
             if (isSearching()) {
                 self._stopEditing();
-                self.fireEvent(BI.MultiTreeInsertCombo.EVENT_CONFIRM);
+                self._dataChange && self.fireEvent(BI.MultiTreeInsertCombo.EVENT_CONFIRM);
             } else {
                 if (isPopupView()) {
                     self._stopEditing();
@@ -218,7 +225,7 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
                     if (clear === true) {
                         self.storeValue = { value: {} };
                     }
-                    self.fireEvent(BI.MultiTreeInsertCombo.EVENT_CONFIRM);
+                    self._dataChange && self.fireEvent(BI.MultiTreeInsertCombo.EVENT_CONFIRM);
                 }
             }
             clear = false;
diff --git a/src/widget/multitree/multi.tree.list.combo.js b/src/widget/multitree/multi.tree.list.combo.js
index 9b82b8780..a3a016179 100644
--- a/src/widget/multitree/multi.tree.list.combo.js
+++ b/src/widget/multitree/multi.tree.list.combo.js
@@ -59,6 +59,7 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
                             self.combo.setValue(self.storeValue);
                             self.numberCounter.setValue(self.storeValue);
                             self._stopEditing();
+                            self._dataChange = true;
                         }
                     }]
                 }
@@ -116,6 +117,7 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
                         self.numberCounter.setButtonChecked(val);
                         self.storeValue = { value: self.combo.getValue() };
                         self.fireEvent(BI.MultiTreeListCombo.EVENT_CLICK_ITEM, self.getValue());
+                        self._dataChange = true;
                     }
                 }, {
                     eventName: BI.MultiTreePopup.EVENT_CLICK_CONFIRM,
@@ -126,6 +128,7 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
                     eventName: BI.MultiTreePopup.EVENT_CLICK_CLEAR,
                     action: function () {
                         clear = true;
+                        self._dataChange = true;
                         self.setValue();
                         self._defaultState();
                     }
@@ -209,12 +212,16 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
             this.getSearcher().setState(checked ? BI.Selection.Multi : BI.Selection.None);
             self.numberCounter.setButtonChecked(val);
             self.fireEvent(BI.MultiTreeListCombo.EVENT_CLICK_ITEM, self.combo.getValue());
+            self._dataChange = true;
         });
 
         this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW, function () {
             if (isSearching()) {
                 return;
             }
+            if (!this.isViewVisible()) {
+                self._dataChange = false; // 标记数据是否发生变化
+            }
             if (change === true) {
                 self.storeValue = { value: self.combo.getValue() };
                 change = false;
@@ -227,7 +234,7 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
         this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW, function () {
             if (isSearching()) {
                 self.trigger.stopEditing();
-                self.fireEvent(BI.MultiTreeListCombo.EVENT_CONFIRM);
+                self._dataChange && self.fireEvent(BI.MultiTreeListCombo.EVENT_CONFIRM);
             } else {
                 if (isPopupView()) {
                     self._stopEditing();
@@ -235,7 +242,7 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
                     if (clear === true) {
                         self.storeValue = { value: [] };
                     }
-                    self.fireEvent(BI.MultiTreeListCombo.EVENT_CONFIRM);
+                    self._dataChange && self.fireEvent(BI.MultiTreeListCombo.EVENT_CONFIRM);
                 }
             }
             clear = false;