Dayu class is a characteristic class of Hohai University, which mainly relies on national key disciplines and implements the talent training mode of combining undergraduate and postgraduate, but does not provide postgraduate and doctoral programs. Hohai University, abbreviated as "HHU", is a national key university directly under the Ministry of Education of China, featuring water conservancy, taking engineering as an advantage, and coordinating the development of economy, management, literature, science, law, art, education and agriculture. The Ministry of Education, the Ministry of Water Resources, the State Oceanic Administration and the People's Government of Jiangsu Province have established universities. The national key construction of "2 1 1 Project", the construction of "985 Engineering Advantage Discipline Innovation Platform" and the establishment of the graduate school are the first units in China with the right to award doctoral, master's and bachelor's degrees. It has been selected into the national "11/plan", "excellent engineer education and training plan", national college students' innovation and entrepreneurship training plan, national high-level university public graduate program, national new engineering research and practice project, China government scholarship receiving institution for foreign students in China, national college students' cultural quality education base, and national college practical education and innovation and entrepreneurship base.