4: 1. According to the information of official website of Harbin Engineering University, the enrollment of the school in 2022 was 27,800, and the admission rate of mathematics major of Harbin Engineering University was 4: 1. Harbin Engineering University, referred to as "Harbin Project", is located in Harbin, Heilongjiang Province. It is a national key university directly under the Ministry of Industry and Information Technology of the People's Republic of China, and is jointly established by the Ministry of Industry and Information Technology, the Ministry of Education, Heilongjiang Province, Harbin City and the Navy.