In the process of the new round of restructuring of the global economic and trade system，we should seek institutional breakthroughs.the Guangdong-HongKong-MacaoGreaterBayArea with rich economic and humanistic forms and a relatively independent geographical unit with almost a piece of white paper，but no lack of resources，Hainan Province has played an important role in undertaking the national all-round open experimental platform.the Guangdong-HongKong-Macao Greater Bay Area and the China（Hainan）Free Trade Pilot Area undoubtedly have assumed the strategic mission.Under the background of opening to the outside world in an all-round way and entering a new era，China will further deepen its foreign economic exchanges and actively participate in the reform and construction of the global governance system，which is conducive to creating a good external environment.Internally，further opening up competitive business and services in natural monopoly industries can effectively force reform，abandon low standards that are not conducive to the development of the industry，eliminate the fittest and improve the competitiveness of enterprises，and help them to exert their strength on the international stage.The establishment and planning of free trade zones and ports will help to further expand regional and national export and transit trade and enhance their position in global trade.Making full use of the status of FTA as an international investment center can further attract foreign investment and introduce advanced foreign technology and management experience.The establishment of free trade zones in ports，transportation hubs and border areas can play a role in booming ports，stimulating the development of transportation and logistics industries.At the same time，through the Great Bay Area，FTA and other forms，we will build a new platform for international cooperation，further expand foreign economic exchanges and cooperation，promote the perfection of the multilateral trading system，expand regional cooperation and strengthen exchanges and cooperation among new economies，which will benefit the construction of an open world economy，and will also contribute to the construction of the external environment for China's economic transformation，and effectively resist conflicts and conflicts.Uncertainty disturbance.At the same time，a step-by-step understanding of the changes in the international environment，active learning and exploring the use of international rules to deal with the difficulties encountered，will also help China to become stronger in its development.In the future，China can participate more actively in the formulation of global rules.At the same time，the Guangdong-HongKong-Macao Greater Bay Area and China （Hainan） Free Trade Pilot Area on the “one belt and one road” key node are full of opportunities.