Peking University Institute of Chinese Language and International Education requires a score of 600 or above in CET-4 and CET-6, and a score of 500 or above in CET-6. Peking University's postgraduate entrance examination requires a CET-4 certificate, which is compulsory, but CET-6 is not. Even if you register, but fail to pass the CET-4, you will not be able to register and get outstanding undergraduate graduates from all universities recommended by your school for exemption.