Correspondence is a learning form of adult college entrance examination (adult college entrance examination is a type of adult education), and other learning forms of adult college entrance examination include amateur learning (evening college) and full-time learning (note: after 2008, ordinary colleges and universities have cancelled full-time graduation certificates of adult college entrance examination, and now only a few are left). Passed the national adult college entrance examination and was admitted to colleges and universities, and issued admission notices. Belonging to the national education series, the state recognizes academic qualifications, participates in the national unified adult college entrance examination and enrollment examination, and all provinces and regions organize enrollment in a unified manner.

Radio and TV University is the Central Radio and TV University and local radio and TV universities at all levels, referred to as "TV University". It is a university that uses modern media technologies such as radio, television and computer network to implement higher education. Mainly with other key universities (such as Nankai University, Dongbei University of Finance and Economics, China University of Political Science and Law, etc.). ). After graduation, the Central Radio and TV University will issue a diploma. After passing the degree requirements of the jointly run university, the cooperative university will issue a diploma.

Night university is a term used in the early days of reform and opening up, which mainly refers to attending classes at night or on weekends. It is a form of adult education, which requires taking the adult college entrance examination, and the learning form is amateur.