The Institute of Social Science Survey (ISSS) of Peking University was established in September 2006. It is a data survey platform for social sciences at Peking University and an interdisciplinary platform for empirical research on social issues in China. The Center currently undertakes three large-scale social survey projects – China Family Dynamic Tracking Survey, China Health Pension Tracking Survey and Chinese Enterprise Innovation and Entrepreneurship Survey. The purpose of the China Family Dynamic Tracking Survey and the China Health Pension Tracking Survey are to collect high-quality micro-data reflecting the state of our people's livelihood, to analyze social and people's livelihood issues, to provide a basis for policy formulation, and to promote social, economic, and social Interdisciplinary research such as education. The center has a professional social science survey team that uses the latest computer-aided survey system to ensure the quality of survey data.