1. Different collections: Peking University mainly collects domestic academic journals, including Chinese journals of China Academy of Sciences Library, foreign journals of China Academy of Sciences Library, Chinese dissertations of China Academy of Sciences Library and foreign dissertations of China Academy of Sciences Library. Chinese core journals include China academic journals, China dissertations, China newspaper documents, China conference papers, China report documents, China government documents, China standard documents and China patent documents.
2. Different meanings: The core of Peking University refers to a certain kind of domestic core periodicals, while the Chinese core periodicals do not refer to a certain kind of domestic core periodicals, but are equivalent to a collection of core periodicals, including seven systems of all domestic core periodicals.