On April 10th, the CITE2019 blockchain technology application research report was officially released in the "2019 China International Blockchain Technology and Application Conference". Chen Zhong, director of the Blockchain Research Center of the School of Information Science and Technology, Peking University, explained the main contents of the report. Chen Zhong introduced that the report is divided into three parts: macro, industry and outlook. The first part of the macro is an overview of the development of the blockchain industry and a review of China's blockchain policy. In 2018 and 2019, the blockchain developed rapidly, and a large number of application scenarios emerged, including the development of smart contracts and technologies. The application in turn has a good support for the development of blockchain technology. The macro chapter combs the basic situation of China's blockchain policy in 2018 and 2019, which not only helps domestic related enterprise users and research institutions, but also contributes to international development.