diff --git a/en/cgroups/00-INDEX b/en/cgroups/00-INDEX
new file mode 100644
index 0000000..bc461b6
--- /dev/null
+++ b/en/cgroups/00-INDEX
@@ -0,0 +1,26 @@
+00-INDEX
+	- this file
+blkio-controller.txt
+	- Description for Block IO Controller, implementation and usage details.
+cgroups.txt
+	- Control Groups definition, implementation details, examples and API.
+cpuacct.txt
+	- CPU Accounting Controller; account CPU usage for groups of tasks.
+cpusets.txt
+	- documents the cpusets feature; assign CPUs and Mem to a set of tasks.
+devices.txt
+	- Device Whitelist Controller; description, interface and security.
+freezer-subsystem.txt
+	- checkpointing; rationale to not use signals, interface.
+hugetlb.txt
+	- HugeTLB Controller implementation and usage details.
+memcg_test.txt
+	- Memory Resource Controller; implementation details.
+memory.txt
+	- Memory Resource Controller; design, accounting, interface, testing.
+net_cls.txt
+	- Network classifier cgroups details and usages.
+net_prio.txt
+	- Network priority cgroups details and usages.
+resource_counter.txt
+	- Resource Counter API.
diff --git a/zh-cn/cgroups/00-INDEX b/zh-cn/cgroups/00-INDEX
new file mode 100644
index 0000000..6b4e6e8
--- /dev/null
+++ b/zh-cn/cgroups/00-INDEX
@@ -0,0 +1,26 @@
+00-INDEX
+    - 这个文件
+blkio-controller.txt
+    - 块 IO 控制器的描述、实现和使用细节
+cgroups.txt
+    - 控制组群的定义、实现细节、样例和API
+cpuacct.txt
+    - CPU 计数控制器；统计每个任务组的 CPU 使用情况
+cpusets.txt
+    - cpusets 特性的文档； 给任务集合分配 CPU 和内存
+devices.txt
+    - 设备白名单控制器； 描述、接口和安全性
+freezer-subsystem.txt
+    - 检查点；不使用信号的原因、接口 
+hugetlb.txt
+    - HugeTLB 控制器实现和使用细节
+memcg_test.txt
+    - 内存资源控制器； 实现细节
+memory.txt
+    - 内存资源控制器； 设计、、接口、测试
+net_cls.txt
+    - 网络分类 cgroups 细节与使用
+net_prio.txt
+    - 网络优先级 cgroups 细节与使用
+resource_counter.txt
+    - 资源计数器 API