International reserves are mainly composed of gold, foreign exchange, IMF reserve positions and special drawing rights. Gold reserve is one of the main components of international reserves, and it is the amount of gold reserves held by central banks in various countries. Foreign exchange reserves are foreign currency assets mainly held by the state in US dollars, which are used to maintain the stability of the national exchange rate and international payments. The reserve position of the International Monetary Fund is the reserve share of member countries in the International Monetary Fund, which can be used to obtain loans and other financial support from the International Monetary Fund. Special Drawing Rights (SDR) is an international reserve asset allocated by the International Monetary Fund according to the share paid by member countries, which can be used to repay IMF loans as international reserves other than gold. These different types of assets are isomorphic to international reserves, which provide a certain degree of economic stability and payment ability for the country.