The best majors of Southwest Jiaotong University are vehicle engineering, communication engineering, architecture, traffic engineering, electrical engineering and automation, transportation, mechanical design and manufacturing and automation, geological engineering, electronic information engineering, engineering mechanics, civil engineering, computer science and technology, all of which are national majors. The strongest disciplines of Southwest Jiaotong University are mechanical engineering and transportation engineering, both of which are national key first-class disciplines and belong to the domestic first-class level.