10.18170/DVN/R96MSN Wang Jimin(Peking University)Luo Pengcheng(Peking University)Zhao Changyu(Peking University)Guo Xin(Peking University)Wang Shiqi(Peking University)Gao Zheng(Peking University) Peking University Open Research Data Platform 2021 This data is collected from 30 data repositories related to humanities and social sciences from domestic and overseas, with a total of about 200,000 datasets' metadata. Due to the repositories use different metadata schema, all original metadata are mapped to the Dublin Core (DC) metadata set. We also provide 10 sample query and the corresponding manual annotation data of top search results, which can be used for the research and design of the retrieval model. Wang Shiqi(Peking University)