On October 17, the China Economic Times published the article "The Great Mission of Hainan Free Trade Port" by Chi Fulin, Dean of the China (Hainan) Reform and Development Research Institute. The article pointed out that considering the financial system of Hainan must not only proceed from the conditions of Hainan, but should be more considered from the institutional arrangements for financial openness. For example, Hainan may become an important test base for China's digital currency. If blockchain technology can achieve breakthroughs, Hainan may become an important test base for China's digital currency. It can be strictly regulated and fully liberalized, and financial system innovation will make a major breakthrough.