Originally red, it changed to blue in 2005, completely out of the heart; The diploma also enhances the anti-counterfeiting technology (mainly to prevent counterfeiting). The authenticity of university diplomas after 2000 can be found on the China College Student Information Network. The cover and the inner core are completely separated, and the color of the cover has no influence on the authenticity of the diploma. The key is the kernel, as long as the kernel is real, it can be found on the above website. The covers are all supervised by the Ministry of Education of People's Republic of China (PRC) and printed with the words "Supervised by the Ministry of Education of People's Republic of China (PRC)".

Three batches of undergraduate courses (independent colleges) and private universities have blue diplomas.