Xiamen University is one of the 32 medium-level universities and the first batch of world-class university construction units. Among them, chemistry, marine science, biology, ecology and statistics were selected into the list of world-class disciplines. Although mathematics is not in the ranks of the first-level discipline construction, it is also very good, ranking 19 in the fourth discipline evaluation of the Ministry of Education, and tied with Dalian University of Technology, Shanghai University, Huazhong University of Science and Technology, National University of Defense Technology and other universities.