diff --git a/demo/js/widget/singletree/demo.single_tree_combo.js b/demo/js/widget/singletree/demo.single_tree_combo.js
index 087b28888..d3c94508e 100644
--- a/demo/js/widget/singletree/demo.single_tree_combo.js
+++ b/demo/js/widget/singletree/demo.single_tree_combo.js
@@ -16,7 +16,7 @@ Demo.SingleTreeCombo = BI.inherit(BI.Widget, {
                 ref: function (_ref) {
                     self.tree = _ref;
                 },
-                text: "默认值",
+                defaultText: "请选择",
                 items: items,
                 width: 300,
                 value: "11"
@@ -40,4 +40,4 @@ Demo.SingleTreeCombo = BI.inherit(BI.Widget, {
     }
 });
 
-BI.shortcut("demo.single_tree_combo", Demo.SingleTreeCombo);
\ No newline at end of file
+BI.shortcut("demo.single_tree_combo", Demo.SingleTreeCombo);
diff --git a/src/widget/singletree/singletree.combo.js b/src/widget/singletree/singletree.combo.js
index ad6b85268..c42392db8 100644
--- a/src/widget/singletree/singletree.combo.js
+++ b/src/widget/singletree/singletree.combo.js
@@ -25,6 +25,7 @@ BI.SingleTreeCombo = BI.inherit(BI.Widget, {
         this.trigger = BI.createWidget(BI.extend({
             type: "bi.single_tree_trigger",
             text: o.text,
+            defaultText: o.defaultText,
             height: o.height,
             items: o.items,
             value: o.value,
diff --git a/src/widget/singletree/singletree.trigger.js b/src/widget/singletree/singletree.trigger.js
index 8c5193d2d..221c8b069 100644
--- a/src/widget/singletree/singletree.trigger.js
+++ b/src/widget/singletree/singletree.trigger.js
@@ -26,6 +26,7 @@ BI.SingleTreeTrigger = BI.inherit(BI.Trigger, {
             type: "bi.select_text_trigger",
             element: this,
             text: o.text,
+            defaultText: o.defaultText,
             items: o.items,
             height: o.height,
             warningTitle: o.warningTitle,