Both Cheng Kao and Guo Kai belong to the national adult higher education recognized by the state, and the gold content is still high or low. In the ranking of adult education in China, the gold content of self-taught examination is the highest, second only to the general college entrance examination, and other academic qualifications are followed by the adult college entrance examination and Guo Kai. It can be seen that the gold content of adult examination is still much higher than that of RTVU, but both of them have their own advantages.

Adult college entrance examination mainly recruits local registered students, and foreign students can also study by correspondence. Because of the advantages of its own teaching methods, the open university has no geographical restrictions on the scope of enrollment.

The entrance threshold for adult college entrance examination is different from that in China: the entrance examination for adult college entrance examination is a national unified entrance examination, which is selected by the school according to the examination results and held once a year. The National Open University has no entrance examination. Candidates can start studying after successful registration.

Adult college entrance examination mainly has three learning methods: full-time, amateur and correspondence. The National Open University has two teaching methods: online self-study and centralized face-to-face teaching.