The core of Peking University is the academic definition of a certain kind of periodical, a classification of periodical grades. Its goal is: China academic journals.

The core of Peking University is journals divided according to various factors such as journal impact factors. The core of Peking University is Peking University Library, which unites many authoritative experts in academic circles.

China Scientific Evaluation Research Center (RCCSE) of Wuhan University is one of the six core periodical evaluation institutions in China, and the Research Report on Evaluation of Academic Journals in China organized by RCCSE has high authority. Up to now, more than 2,000 publishing houses and more than 500 scientific research management departments have taken the evaluation results of this report as an important basis for quality evaluation and scientific research evaluation.