Objective. To understand the impact of platform selection on each influencing factor of students’ teaching evaluation. Method. The factor analysis method was used to analyze the questionnaire survey of students’ satisfaction with teaching evaluation in 16 undergraduate colleges and universities in Sichuan Province. The impact of five key factors on students’ satisfaction with teaching, i.e., teachers’ teaching ethics, teaching ability, teaching content, teaching method, and teaching effect, was explored. Results. It shows that platform selection has a significant impact on various factors in the whole online teaching process. Regarding the degree of impact of platform selection on students’ teaching evaluation satisfaction, senior students are slightly higher than junior students, boys are slightly higher than girls, and students majoring in science and technology are slightly higher than those in other disciplines. Conclusion. Due to the great influence of teaching platform selection on online teaching satisfaction, teachers must choose an appropriate teaching platform according to teaching needs.