diff --git a/style/web/components/tree/_index.less b/style/web/components/tree/_index.less
index fa6303531c..ca515f9c18 100644
--- a/style/web/components/tree/_index.less
+++ b/style/web/components/tree/_index.less
@@ -197,7 +197,7 @@
     align-items: center;
     // 图标居中
     text-align: center;
-    width: 16px;
+    width: @icon-default;
     // 当子元素只有一个且为image类型时，会有隐藏占位，因此将font-size设0
     font-size: 0;
     user-select: none;
diff --git a/style/web/components/tree/_var.less b/style/web/components/tree/_var.less
index f27d2813d2..6ab2d697c7 100644
--- a/style/web/components/tree/_var.less
+++ b/style/web/components/tree/_var.less
@@ -39,7 +39,7 @@
 @tree-node-icon-svg-size: @icon-default;
 @tree-node-item-line-height: 22px;
 @tree-line-before-width: 12px;
-@tree-line-leaf-width: 12px;
+@tree-line-leaf-width: 12px + @icon-default;
 @tree-line-first-height: 22px;
 @tree-node-item-origin-height: calc(@tree-node-item-height * var(--hscale) + 0px);