Based at the China Survey and Data Center of Renmin University and the Chinese Government Statistics Institute of Renmin University. It is based on the data of various large-scale tracking projects and cross-sectional survey projects funded by the "Data Highland Project" of the Scientific Research Fund of Renmin University of China. It comprehensively and extensively collects the original data and related information of various sampling surveys conducted in mainland China, cleans, processes, archives, standardizes and internationalizes the collected data and information according to international standards, and realizes the opening and sharing of scientific research data by building an online data sharing platform.
