diff --git a/dist/bundle.js b/dist/bundle.js
index 7576b93c65..e02556e554 100644
--- a/dist/bundle.js
+++ b/dist/bundle.js
@@ -103569,7 +103569,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
             BI.isKey(self._startValue) && (self.storeValue = self._startValue);
             self.trigger.getSearcher().setState(self.storeValue);
         };
-        this.storeValue = o.value || "";
+        this.storeValue = o.value;
         // 标记正在请求数据
         this.requesting = false;
 
@@ -103875,7 +103875,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
     },
 
     setValue: function (v) {
-        this.storeValue = v || "";
+        this.storeValue = v;
         this._assertValue(this.storeValue);
         this.combo.setValue(this.storeValue);
     },
@@ -103897,7 +103897,8 @@ BI.extend(BI.SingleSelectCombo, {
 
 BI.SingleSelectCombo.EVENT_CONFIRM = "EVENT_CONFIRM";
 
-BI.shortcut("bi.single_select_combo", BI.SingleSelectCombo);/**
+BI.shortcut("bi.single_select_combo", BI.SingleSelectCombo);
+/**
  * 选择列表
  *
  * Created by GUY on 2015/11/1.
diff --git a/dist/widget.js b/dist/widget.js
index 6ac30f5b8a..7e8f60e27b 100644
--- a/dist/widget.js
+++ b/dist/widget.js
@@ -16682,7 +16682,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
             BI.isKey(self._startValue) && (self.storeValue = self._startValue);
             self.trigger.getSearcher().setState(self.storeValue);
         };
-        this.storeValue = o.value || "";
+        this.storeValue = o.value;
         // 标记正在请求数据
         this.requesting = false;
 
@@ -16988,7 +16988,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
     },
 
     setValue: function (v) {
-        this.storeValue = v || "";
+        this.storeValue = v;
         this._assertValue(this.storeValue);
         this.combo.setValue(this.storeValue);
     },
@@ -17010,7 +17010,8 @@ BI.extend(BI.SingleSelectCombo, {
 
 BI.SingleSelectCombo.EVENT_CONFIRM = "EVENT_CONFIRM";
 
-BI.shortcut("bi.single_select_combo", BI.SingleSelectCombo);/**
+BI.shortcut("bi.single_select_combo", BI.SingleSelectCombo);
+/**
  * 选择列表
  *
  * Created by GUY on 2015/11/1.
diff --git a/src/widget/singleselect/singleselect.combo.js b/src/widget/singleselect/singleselect.combo.js
index 086abd2809..d556ee45d3 100644
--- a/src/widget/singleselect/singleselect.combo.js
+++ b/src/widget/singleselect/singleselect.combo.js
@@ -22,7 +22,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
             BI.isKey(self._startValue) && (self.storeValue = self._startValue);
             self.trigger.getSearcher().setState(self.storeValue);
         };
-        this.storeValue = o.value || "";
+        this.storeValue = o.value;
         // 标记正在请求数据
         this.requesting = false;
 
@@ -328,7 +328,7 @@ BI.SingleSelectCombo = BI.inherit(BI.Single, {
     },
 
     setValue: function (v) {
-        this.storeValue = v || "";
+        this.storeValue = v;
         this._assertValue(this.storeValue);
         this.combo.setValue(this.storeValue);
     },
@@ -350,4 +350,4 @@ BI.extend(BI.SingleSelectCombo, {
 
 BI.SingleSelectCombo.EVENT_CONFIRM = "EVENT_CONFIRM";
 
-BI.shortcut("bi.single_select_combo", BI.SingleSelectCombo);
\ No newline at end of file
+BI.shortcut("bi.single_select_combo", BI.SingleSelectCombo);