diff --git a/demo/js/widget/selecttree/demo.multilayer_select_tree_combo.js b/demo/js/widget/selecttree/demo.multilayer_select_tree_combo.js
index 645c28fcd..25ac4e518 100644
--- a/demo/js/widget/selecttree/demo.multilayer_select_tree_combo.js
+++ b/demo/js/widget/selecttree/demo.multilayer_select_tree_combo.js
@@ -16,7 +16,7 @@ Demo.MultiLayerSelectTreeCombo = BI.inherit(BI.Widget, {
                 ref: function (_ref) {
                     self.tree = _ref;
                 },
-                text: "默认值",
+                defaultText: "请选择",
                 items: items,
                 width: 300,
                 value: ["第五级文件1"]
@@ -40,4 +40,4 @@ Demo.MultiLayerSelectTreeCombo = BI.inherit(BI.Widget, {
     }
 });
 
-BI.shortcut("demo.multilayer_select_tree_combo", Demo.MultiLayerSelectTreeCombo);
\ No newline at end of file
+BI.shortcut("demo.multilayer_select_tree_combo", Demo.MultiLayerSelectTreeCombo);
diff --git a/demo/js/widget/singletree/demo.multilayer_single_tree_combo.js b/demo/js/widget/singletree/demo.multilayer_single_tree_combo.js
index 109d0c489..1a699c2ea 100644
--- a/demo/js/widget/singletree/demo.multilayer_single_tree_combo.js
+++ b/demo/js/widget/singletree/demo.multilayer_single_tree_combo.js
@@ -16,7 +16,7 @@ Demo.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
                 ref: function (_ref) {
                     self.tree = _ref;
                 },
-                text: "默认值",
+                defaultText: "请选择",
                 items: items,
                 width: 300
             }, {
@@ -39,4 +39,4 @@ Demo.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
     }
 });
 
-BI.shortcut("demo.multilayer_single_tree_combo", Demo.MultiLayerSingleTreeCombo);
\ No newline at end of file
+BI.shortcut("demo.multilayer_single_tree_combo", Demo.MultiLayerSingleTreeCombo);
diff --git a/src/widget/multilayersingletree/multilayersingletree.combo.js b/src/widget/multilayersingletree/multilayersingletree.combo.js
index fd606ccf7..c33e3d216 100644
--- a/src/widget/multilayersingletree/multilayersingletree.combo.js
+++ b/src/widget/multilayersingletree/multilayersingletree.combo.js
@@ -13,6 +13,7 @@ BI.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
             isDefaultInit: false,
             height: 24,
             text: "",
+            defaultText: "",
             itemsCreator: BI.emptyFn,
             items: [],
             value: "",
@@ -177,6 +178,7 @@ BI.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
                     self.textTrigger = _ref;
                 },
                 text: o.text,
+                defaultText: o.defaultText,
                 height: o.height,
                 items: o.items,
                 value: o.value,
@@ -259,4 +261,4 @@ BI.MultiLayerSingleTreeCombo.EVENT_FOCUS = "EVENT_FOCUS";
 BI.MultiLayerSingleTreeCombo.EVENT_CHANGE = "EVENT_CHANGE";
 BI.MultiLayerSingleTreeCombo.EVENT_STOP = "EVENT_STOP";
 BI.MultiLayerSingleTreeCombo.EVENT_BEFORE_POPUPVIEW = "EVENT_BEFORE_POPUPVIEW";
-BI.shortcut("bi.multilayer_single_tree_combo", BI.MultiLayerSingleTreeCombo);
\ No newline at end of file
+BI.shortcut("bi.multilayer_single_tree_combo", BI.MultiLayerSingleTreeCombo);