Abstract: Fundamentals of electronics and circuit is the basic course for information science and computer science undergraduates, which include the content of circuit analysis and analogue circuit. This course is characterized as strong practice, technology, research and innovation and it is the basics of extracurricular science and technology contest. The self study, practice and innovation teaching of the course is explored based on the platform of national electronics design contest and national mathematical modeling contest. The innovation teaching of the course fundamentals of electronics and circuit mainly focuses on teaching content, teaching platform, practice and innovation and improvement of teachers, which attempts to enhance the undergraduates’ ability of self-study, practice and innovation, and to cultivate qualified students with research awareness and innovative capability.