This chapter presents a schematic overview of the Chinese social security system in terms of coverage, financing, service delivery, eligibility, and entitlement. In view of the rapid migration both from and to China, the multitude of social policy challenges have arisen. This chapter pays particular attention to the differential access to social protection across citizens, foreigners residing in China, and Chinese citizens living abroad. Given the continuous reforms in the recent years, this chapter aims to provide an up-to-date overview of social security framework, especially that governing international migration, in the world’s most populous country and the second largest economy.