The National Open University, referred to as "Guo Kai" for short, is a new type of institution of higher learning directly under the Ministry of Education of People's Republic of China (PRC). Before 16, The Open University of China was called the Central Radio and TV University (local sichuan radio and tv university and Chengdu Radio and TV Universities), or "TV University" for short. CDB is established on the basis of Central Radio and Television University and local radio and television universities, supported by modern information technology, with a school network covering urban and rural areas throughout the country, and a new university that pays equal attention to academic education and non-academic education. There are 3.59 million registered students.