An important task in promoting the development of the Greater Bay Area is to build an international financial hub，which is of great significance to deepening the reform and development of China’s financial industry and improving the spatial distribution of finance. Under the background of the international environment of constant turbulence and change and the domestic environment of the new development pattern，the Guangdong-Hong Kong-Macao Greater Bay Area，as one of the regions with the most dynamic economy and the highest degree of openness in China，has the natural foundation for the implementation of the strategy of a “dual circulation” development pattern. In particular，as an international financial center，Hong Kong will play a unique advantage and special role in promoting financial openness and innovation in the Greater Bay Area. Explore the construction of financial islands，conduct experiments and explorations in relatively independent and closed areas，and carry out a package of policy innovations centered on financial innovation，from finance，characteristics of platform，system innovation，science and technology talents converging，security system，five dimensions，and takes the lead in promoting the implementation of financial science and technology innovation strategy，build three platforms，the bay area financial field construction financial system innovation，to build international financial talents converging island，set up the system guarantee of the high degree of matching system，in order to promote the formation of China’s financial industry connect with each other，promote each other，complement each other in the new development pattern with the bay area.