Chinese government attaches great importance to the development of blockchain technology and its industrialization. The policy positioning of the blockchain has become increasingly clear，and the guidance for related industries has become more and more targeted. At the same time，there has been a blowout in the number of local supporting policies. At present，with the huge application prospects and the great attention of governments at all levels，the development of the blockchain industry has entered a policy friendly period，and various peripheral technologies have begun to bond closer to the business logic of the blockchain. Keeping pace with the development of the blockchain industry，the policy presents the characteristics of continuous refinement.