As a brand new teaching resource, micro lesson is widely used in current teaching, and with the characteristics of short time, refined content and strong pertinence, it creates conditions for the reform of modern classroom teaching and personalized learning In the secondary vocational computer classroom teaching middle school students' interest in learning generally is not high, learning initiative is low, the effect of classroom teaching is poorer, which requires the secondary vocational teachers using innovative teaching methods in basic computer classroom, the micro class into the secondary vocational computer teaching in the classroom, in order to improve the classroom teaching quality Improve the teaching work Harvest the good teaching efficiency This paper discusses the understanding and application of micro course through the design and production of the appearance of computer basic presentation in secondary vocational schools.