Last week, according to IDC research, the market expenditure of China's blockchain reached US$160 million in 2018. It is expected that this strong growth will continue in the next three years. By 2022, the market's expenditure will be expected to reach 1.67 billion US dollars, and the compound growth rate will exceed 80% in 2017-2022. According to IDC research, the five typical scenarios of blockchain-assisted financial services are: trade finance, supply chain finance, asset securitization (ABS), reinsurance, and cross-border payment and liquidation. At present, in addition to supply chain finance, asset securitization, credit reporting and risk, the application of blockchain technology in the financial industry is also actively explored for use in other broader fields and to generate greater economies of scale. .