Integrating the most advanced technologies in the FinTech field，such as distributed data storage，peer-to peer transmission，encryption algorithm，block chain finance is supposed to promote the efficiency of resources allocating and the stability of whole financial system. However，it fails to get rid of the essence of risk management of finance，especially its potential technical，systematic and legal risks and so on. On the basis of analyzing the major application scenarios，potential risks and regulatory patterns of block chain finance in other countries，this paper puts forward a series of thinking related to its supervision，hoping to help the supervisors improve the regulatory system and policies.