0. Environment
Windows XP SP3
1.Steps
1.1 Install JDK
1.2 Install Android SDK
http://developer.android.com/sdk/index.html
(Visit http://developer.android.com/sdk/installing/adding-packages.html for detail)
1.3 Install Eclipse
1.4 Install Eclipse Plugin - ADT
(Visit http://developer.android.com/sdk/installing/installing-adt.html for detail)
2.Troubleshooting
If you could not access the host or it's very slow, please open your "Host" file in C:\WINDOWS\system32\drivers\etc\hosts and add the following line:
74.125.237.1 dl-ssl.google.com
Save and restart the "Android SDK Manager"
3. Reference
http://blog.163.com/sukhavati_blog/blog/static/207283042201242324916991/