diff --git a/src/components/tree/node.vue b/src/components/tree/node.vue
index 7dc34344..87e3a6f9 100644
--- a/src/components/tree/node.vue
+++ b/src/components/tree/node.vue
@@ -3,7 +3,7 @@
         <ul :class="classes">
             <li>
                 <span :class="arrowClasses" @click="handleExpand">
-                    <Icon v-if="showArrow" type="md-arrow-dropright"></Icon>
+                    <Icon v-if="showArrow" type="ios-arrow-forward"></Icon>
                     <Icon v-if="showLoading" type="ios-loading" class="ivu-load-loop"></Icon>
                 </span>
                 <Checkbox
diff --git a/src/styles/components/tree.less b/src/styles/components/tree.less
index a04e809c..f261e969 100644
--- a/src/styles/components/tree.less
+++ b/src/styles/components/tree.less
@@ -43,7 +43,7 @@
         display: inline-block;
         i {
             transition: all @transition-time @ease-in-out;
-            font-size: @font-size-large;
+            font-size: @font-size-base;
             vertical-align: middle;
         }
         &-open{