The evaluation of students' satisfaction degree on classroom teaching and the analysis of its influencing factors are conducive to promoting the quality of classroom teaching. Using the classical customer satisfaction theory and TAM combined with the teaching activities in application-oriented undergraduate colleges, this paper established a concept model of classroom teaching satisfaction learning input research. Taking the full-time undergraduate of CZ University as the investigation object, this paper uses Amos software to test the concept model. The results show that perceived usefulness, perceived ease of use and teachers' ethics can have a significant positive impact on classroom teaching satisfaction. Teachers' ethics, classroom management and learning atmosphere can significantly affect learning engagement. Finally, it puts forward countermeasures and suggestions around the innovation of teaching methods, improvement of teaching skills, strengthening the construction of teachers' ethics, building learning atmosphere, strengthening curriculum regulation and management, and improving the assessment system.