diff --git a/docs-zh/Document.md b/docs-zh/Document.md
index 0fd785e3151b9b05eaee3bbabe890b669bf88177..fa0e0131a5262994ebf8155c3b258f2296f9b46e 100644
--- a/docs-zh/Document.md
+++ b/docs-zh/Document.md
@@ -17,7 +17,7 @@
 * `document.querySelector("selector")`
 * `document.$("selector")` 等价于上面
 * `document.querySelectorAll("selector")`
-* `document.$$("selector")`等级于上面
+* `document.$$("selector")`等价于上面
 * `document.getElementById("id")`
 * `document.createElement()`
 * `document.createTextNode()`