For ordinary colleges and universities, the state has not liberalized, that is, ordinary colleges and universities run by the state are not allowed to upgrade to undergraduate courses in principle at present, no matter how strong your ability is, such as Nantong Vocational College, where the number of professors, associate professors, masters and doctors has reached or even exceeded that of ordinary undergraduate colleges, but because of national policies, you cannot upgrade to undergraduate courses.

But the country is open to the people (private schools), as long as you meet certain conditions, you can be promoted to undergraduate courses. In addition, private colleges and universities can't close down because of their poor enrollment, which is one of the reasons for their promotion; In addition, there may be other reasons, such as the capital composition of private colleges and universities.