diff --git a/2 Link List/QPS Counter.md b/2 Link List/QPS Counter.md
new file mode 100644
index 0000000..2749960
--- /dev/null
+++ b/2 Link List/QPS Counter.md	
@@ -0,0 +1,4 @@
+# QPS Counter
+
+统计各接口QPS计数
+使用一个双向循环链表结构
\ No newline at end of file