Baseisolation technique is a new seismic technique, which was involved in Code for seismic design of buildings in 2001. In this paper, the teaching process of designing a base-isolated building as a graduating project for undergraduate students is introduced sysmatically, including design steps, instruction methods, and some ways to overcome the mistakes easily happened by students. Finally, some new ideas from students are also presented. This paper can provide some demonstrations and references for the teachers who intend to develop this kind of work.