mit上有详细说明，



大概就是准备材料，预约时间，去签证这个过程



多长时间关键看你用多长时间才能准备好材料



和你到底能够预约到什么时候的面试时间了

as mentioned, go to visa board at mitbbs, u will get what u want. normally, u need to send them a copy of ur I-20, passport and I-94. and your bank certificate letter to show how much many you have............. then go to the website of the usa consultant in china and make an application appointment for ur dad. prepare DS forms and photos etc.