Recently, China's Intellectual Property reported on the major events in the patent field in 2019, including the "" blockchain ": patent layout entered the" fast lane. " The article points out that blockchain is a technology buzzword in recent years. After the eighteenth collective study on the current status and trends of blockchain technology development on the afternoon of October 24, 2019, the Political Bureau of the CPC Central Committee, blockchain has once again become the focus of attention of the whole society, and has been on the major authoritative media TV media headlines. There are four characteristics in the field of blockchain patents. First, China's innovation entities have developed patents relatively late, but the number of patent applications has shown rapid growth. Second, China and the United States are important markets and technology original countries. China Emphasis on domestic layout, the US multilateral layout is obvious, the distribution of blockchain technology applicants is relatively scattered, there are many start-up companies, there are no obvious patent barriers and industry leaders; third, for the blockchain security, For synchronization efficiency, China has explored solutions and formed a number of core patents. Fourth, the application of blockchain technology has broad prospects, but some technical problems remain unsolved and urgently need to be broken.