The phenomenon of college students skipping classes has become widespread, not only the explicit truancy behavior is frequent, but also the implicit truancy behavior is also very serious. This is the result of many factors, among which the teacher's classroom management is a link factor related to the truancy behavior of college students. This paper analyzes the truancy behavior of college students from the perspective of teacher's classroom management, which is characterized by poor classroom attendance, unattractive classroom teaching, and improper organization and method of classroom teaching. Because the teacher's classroom management is not only the teacher's individual behavior, but also will be affected by the higher education system, the university management system and the student's behavior. This paper will also put forward the corresponding countermeasures from the University, the teacher and the student's three aspects, hoping to help reduce the University students' explici