diff --git a/README.md b/README.md
index a057278..bfcfbf1 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,9 @@
 # SPDev
+
+- [SPDev](#spdev)
+  - [SPDac](#spdac)
+  - [SPSMU](#spsmu)
+
 This repository stores some manuals about SPDev series devices 
 
 manuals store in each device folder
diff --git a/SPDac/README.md b/SPDac/README.md
index db743a8..81405f3 100644
--- a/SPDac/README.md
+++ b/SPDac/README.md
@@ -1,6 +1,11 @@
 # SPDac
 
-[TOC]
+- [SPDac](#spdac)
+  - [Driver Installation](#driver-installation)
+      - [Windows：](#windows)
+      - [Linux：](#linux)
+  - [SCPI Commands](#scpi-commands)
+  - [QCoDeS Functions](#qcodes-functions)
 
 ## Driver Installation
 
diff --git a/SPSMU/README.md b/SPSMU/README.md
index 7e498e0..124b807 100644
--- a/SPSMU/README.md
+++ b/SPSMU/README.md
@@ -1,9 +1,10 @@
 # SPSMU
 
-[TOC]
+- [SPSMU](#spsmu)
+  - [Connect](#connect)
+  - [SCPI Commands](#scpi-commands)
 
 ## Connect
-
 设备支持仪器通用可编程仪器标准指令(SCPI)，通过USB串口与设备进行连接，可以通过MATLAB、PyVISA等工具进行控制，如果需要直接使用串口工具控制，推荐使用[Tabby](https://github.com/Eugeny/tabby "一个十分好用的现代终端模拟器")。
 
 ## SCPI Commands