Abstract: Under the background of "Internet +" education, this paper analyzes the research status of micro-lecture in college mathematics courses, and explores the necessity of the application of micro-lecture in discrete mathematics courses. Based on computer engineering, puts forward the micro-lecture in discrete mathematics course applied to explore the new method, the main content, the teaching design and the concrete application case, designed to inspire students to learn the intrinsic motivation, promote students' autonomous learning effectively, for students to learn subsequent courses provide the necessary mathematical basis, achieve the expected teaching effect, effectively promote the development of teachers' professional level and the development of applied teaching reform in schools. Hope to get some affirmation and application promotion in the same type of colleges and universities.

Key words: Micro-lecture, Major in computer science, Discrete mathematics, Application to explore, Teaching reform, Teaching effect, Teaching design