diff --git a/src/core/wrapper/layout/fill/float.fill.horizontal.js b/src/core/wrapper/layout/fill/float.fill.horizontal.js
index e90c7b0cd..abcbbca57 100644
--- a/src/core/wrapper/layout/fill/float.fill.horizontal.js
+++ b/src/core/wrapper/layout/fill/float.fill.horizontal.js
@@ -19,9 +19,6 @@ BI.FloatHorizontalFillLayout = BI.inherit(BI.Layout, {
         this.populate(this.options.items);
     },
 
-    resize: function () {
-        // console.log("填充布局不需要resize");
-    },
     addItem: function (item) {
         // do nothing
         throw new Error("不能添加子组件");
@@ -79,8 +76,12 @@ BI.FloatHorizontalFillLayout = BI.inherit(BI.Layout, {
             }
             var top = o.vgap + o.tgap + (item.tgap || 0) + (item.vgap || 0),
                 bottom = o.vgap + o.bgap + (item.bgap || 0) + (item.vgap || 0);
+            if (BI.isNull(item.height)) {
+                w.element.css({
+                    height: "calc(100% - " + ((top + bottom) / BI.pixRatio + BI.pixUnit) + ")"
+                });
+            }
             w.element.css({
-                height: "calc(100% - " + ((top + bottom) / BI.pixRatio + BI.pixUnit) + ")",
                 position: "relative"
             });
             return w;
@@ -123,6 +124,10 @@ BI.FloatHorizontalFillLayout = BI.inherit(BI.Layout, {
         });
     },
 
+    resize: function () {
+        // console.log("填充布局不需要resize");
+    },
+
     update: function (opt) {
         return this.forceUpdate(opt);
     },