The national survey research center at Renmin University of China (NSRC) is an interdisciplinary and interdisciplinary comprehensive research institution directly under Renmin University of China. The purpose of the center is to scientifically, systematically and comprehensively collect, sort out, store and develop China's economic and social survey data, conduct research and development of survey methods and related technologies, implement large-scale scientific research projects of great scientific and practical significance, and provide data support for scientific research and government decision-making.