The 3rd China Internet Finance Forum 2019 was held in Beijing on the theme of "Fintech assists the construction of a modern financial system". Chen Liwu, Deputy Director of the Science and Technology Department of the People's Bank of China, attended the event and delivered a speech. Chen Liwu believes that in recent years, China's financial institutions have followed development trends, worked hard to explore, and dared to practice, and have achieved some blockchain application results. But how to make good use of blockchain technology in the financial industry still faces some challenges. Chen Liwu puts forward four suggestions on how to promote the application and development of blockchain technology: one is to strengthen the research on blockchain technology tracking; the other is to promote the development of blockchain technology application standards in the financial field; the third is to guide the blockchain technology in finance Reasonable application in the field; the fourth is to strengthen the industry collaboration of blockchain technology.