On October 30th, the People’s Daily published the article “Blockchain, How much do you know”. The article said that although it has begun to explore the application of blockchain in the fields of Internet of Things and intelligent manufacturing, overall, due to the complexity of the scenarios involved, the landing mode is not clear enough, and the application of blockchain in the real economy is still in its infancy. At the stage, it is necessary to improve the technology, identify the application scenarios, and solve practical problems such as project implementation. It is worth noting that in some applications of the blockchain, all transaction data is publicly transparent. Therefore, how to protect information privacy is a problem that needs to be solved in the development of blockchain. Experts suggest that we should strengthen the guidance and regulation of blockchain technology, strengthen the research and analysis of blockchain security risks, explore the establishment of a security system that adapts to the blockchain technology mechanism, and promote the safe and orderly development of blockchain.