Abstract: In recent years, in the process of quality education for college students, a single classroom education has been unable to meet the fundamental needs of education. The second class as the expansion carrier of the first class, through the expansion of the first class for college students to create a good learning environment and physical and mental health atmosphere, is conducive to the development of quality education. Colleges and universities should attach importance to the design of the second class, carry out quality education in an all-round way under the support of the second class, train students' professional quality and comprehensive quality through various measures, and lay a solid foundation for the follow-up development of college students.