For a long time, the post-service education of college teachers has not been paid enough attention to. With the deepening of the reform of college education in recent years, the concept, method, system and mode of post-service education of teachers are obviously lagging behind the actual demand, so it is difficult to provide guarantee for the professional development of teachers in colleges and universities. The foundation of improving the quality of education in colleges and universities lies in teachers. Post-service education is an important "back-feeding" measure to improve teachers'professional ability, and it is also an effective method to improve teachers'professional accomplishment and teaching ability. Therefore, colleges and universities should recognize the importance of post-service education, from the concept of post-post education, educational measures to ensure the good development of college teachers.