International reserves include: ① gold reserves, which are monetary gold held by monetary authorities and have a long history; Foreign exchange reserves are free foreign exchange held by monetary authorities or other monetary assets expressed in free foreign exchange; (3) The reserve position in the IMF, also known as ordinary drawing rights, is 25% of the share paid to the IMF by IMF member countries in gold, foreign currency designated by the IMF or special drawing rights; (4) Special Drawing Rights (SDR) is a new type of international reserve asset, which is distributed to member countries free of charge by the IMF after 1970.