The reform of classroom teaching model has become a hot area. Application-oriented undergraduate refers to the application-oriented positioning for the school, rather than scientific research for the positioning of undergraduate colleges. For an application-oriented undergraduate university, the quality of personnel training is the most important, so that students in the classroom can efficiently learn theory and practice knowledge is the key to improving the quality of talent. In view of the main problems in the current classroom teaching, combined with the advantages of lectures and discussion classes, the use of PAD teaching method, emphasizing the students after school self - learning, effectively enhance the initiative of students to learn. The results show that teaching effect is good.