Hohai University has specialized departments such as Hydrology and Water Resources College, Water Conservancy and Hydropower Engineering College, Civil Engineering College, Environmental Science and Engineering College, Transportation College, Ocean College, Electromechanical Engineering College, Computer and Information Engineering College, Electrical Engineering College, Business School, Public Administration College, Foreign Languages College, Science College, Agricultural Engineering College, Materials Science and Engineering College, Law School and Physical Education Department. It has 1 first-class disciplines, 7 national key disciplines in two disciplines and 9 provincial key disciplines; 9 national and provincial key laboratories and 6 national and provincial engineering research centers; 7 postdoctoral mobile stations; There are 38 doctoral programs, 124 master programs, 18 engineering master degree fields and MBA degree authorization programs, 15 college teachers studying for master degrees and 48 undergraduate majors. Among them, the comprehensive strength of hydraulic engineering and civil engineering is in a leading position in China, especially the overall strength of hydraulic engineering discipline is the strongest, and there are many supporting and related disciplines. The comprehensive strength of the talent echelon of water conservancy and related disciplines is in the first-class position in China. At present, there are more than 30,000 students with various academic qualifications, including 9,263 graduate students and 8,605 undergraduate students.