Abstract:
[Purpose/significance] From the perspective of the researchers, this study empirically analyzed the changes and differences of the policies for the Plan S. In order to inspire the practice of open access in China.[Method/process] It used the method of literature research and content analysis. Based on the development of Plan S, we analyzed the content of the target policy. We focused on the recent new, including monitoring the effects of Plan S, rights retention strategy and Diamond Open Access.[Result/conclusion] Focus on the deep interpretation of the policy and dig the internal motivation, the Plan S are affected by qualifications, countries, subjects, the difficulty of the Green Open Access and the difficulty to distinguish predatory journal for the researchers. Therefore, setting up Open Access professional staff, formulating APC policy, reinforcing quality management of journals and promoting the construction of institutional repository. These policies of the Plan S may have positive influence on the polities of China.