The 3rd China Internet Finance Forum 2019 with the theme of "Fintech to help build a modern financial system" was held in Beijing today. Li Lihui, leader of the Blockchain Research Working Group of the China Internet Finance Association, believes that the application of blockchain technology has been extended to Digital finance, internet of things, intelligent manufacturing, supply chain management, digital assets and many other fields. Talking about how to evaluate the current status of blockchain technology and industrial development, he believes that the underlying technology of the blockchain is not yet mature, and the technical bottlenecks of large-scale and reliable applications need to be broken. It is currently in the period of great opportunities for the development of blockchain technology and industrial innovation. In Li Lihui's opinion, it is necessary to establish a sandbox experiment system for digital financial innovation, and actively explore new models and new regulations for digital financial business supervision. In the construction of digital finance, we should actively participate in and strive for the right to speak and dominate the relevant international rules and standards, strengthen international regulatory coordination, promote regulatory consensus, and establish uniform international financial regulatory standards for digital finance.