diff --git a/docs/chapter_tree/binary_tree_types.md b/docs/chapter_tree/binary_tree_types.md
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--- a/docs/chapter_tree/binary_tree_types.md
+++ b/docs/chapter_tree/binary_tree_types.md
@@ -37,7 +37,7 @@ comments: true
 
 ## 平衡二叉树
 
-**「平衡二叉树 Balanced Binary Tree」，又称「AVL 树」** ，其任意结点的左子树和右子树的高度之差的绝对值 $\leq 1$ 。
+**「平衡二叉树 Balanced Binary Tree」** ，其任意结点的左子树和右子树的高度之差的绝对值 $\leq 1$ 。
 
 ![balanced_binary_tree](binary_tree_types.assets/balanced_binary_tree.png)