It is not difficult to review the undergraduate online education papers of Southwest Jiaotong University. Official website of Southwest Jiaotong University shows that the topics of online education papers are relatively narrow, and they are usually aimed at a certain major or discipline. In this case, the students' topics are relatively concentrated, the research direction and depth of the paper are relatively consistent, and the review of the paper is relatively easy. Southwest Jiaotong University, referred to as "Southwest Jiaotong University", is located in Chengdu, Sichuan Province. It is a national key university directly under the Ministry of Education of People's Republic of China (PRC), which is jointly established by the Ministry of Education, China Railway Corporation, Sichuan Provincial People's Government and Chengdu Municipal People's Government. Ranked as "double first-class", "21/engineering" and 985 engineering advantage discipline innovation platform, selected as "20 1 1 plan", "1/plan", excellent engineer education and training plan, and.