Under the grand economic vision of opening up and cooperation among countries, the world economy is gradually recovering, and economic and trade exchanges between countries are increasing, which is an important sign of sound economic development. At the same time, we need the joint efforts of all countries to move towards the goal of mutual benefit and common development.We should fully develop one of the "one belt one road" in the economic construction. At the same time, we need to deepen economic cooperation, improve the investment and financing system and credit system, and China International Finance is particularly important. International financial cooperation is one of the difficulties things and “One belt one road” is the same. The financial market's influence on the economic outflow of funds is not to be ignored. Based on this background, one will take the "one belt one road" as the starting point to explore the problems of international financial cooperation.