Class B journals were classified according to the review cycle, difficulty of publication, academic influence, and other factors. Class B journals were usually defined as journals that were more difficult to publish, had higher academic standards, had a certain academic influence, but published less frequently and had a longer publication cycle. Class B journals covered a wide range of fields such as humanities and social sciences, natural sciences, and so on. In the field of academic research, B journals were an important academic resource and one of the important channels for academic results to be published.