With the advancement of quality education and teaching reform in our country, subject competition has become one of the important ways to test the country and industry to test the reform and effectiveness of education and teaching in colleges and universities. The hard work of students and students in the subject competition is important, but the hard work and correct guidance of the instructor are also indispensable. The author combined his own team leadership experience to discuss from nine aspects including publicity and team formation, rules and interpretation, theory and practice, profession and interest, data and technology, topic and scope, appearance and performance, conclusion and reply, attitude and summary, etc. Provide instructors and participating college students with their own insights and experiences.