Abstract: In order to cultivate the students’ comprehensive design ability, make students better grasp the principle and technology of solar photovoltaic, teaching exploration of comprehensive design experiments based on solar photovoltaic system have been made. Take “the design of automatically control solar street lights” for an example, this paper discussed how to carry out a comprehensive design experiment. We guided students to design and build a system of solar energy utilization, and cultivated their engineering oriented application ability and innovation ability.