According to the 21st Century Business Herald, at the "Blockchain Innovation Technology Summit Forum and Siyuan Blockchain Strategy Conference" on the afternoon of May 28th, Yan Ming, director of the Computer Security Professional Committee of the Chinese Computer Society, pointed out that the blockchain is for information security. Significant. And 2019 is an important node in China's information security work. He said that the blockchain has good application prospects in information sharing, copyright protection, forensic certification, logistics chain, supply chain finance, cross-border payment, asset digitization, and virtual currency. At the same time, however, the development of blockchain still faces many problems and challenges. For example, the current blockchain technology needs to be continuously improved and improved. The application of blockchain has touched on government services, public services, Internet of Things, and intelligence. Manufacturing, supply chain management, digital asset trading and other fields, but the availability and practicality of the blockchain is still a certain distance from the majority of individual users.