1. Strict foreign exchange control: Strict foreign exchange control is imposed on all items of the balance of payments, mainly in some poor developing countries and regions with unstable political and economic conditions.

2. Partial foreign exchange control: Non-resident current account (including trade and non-trade) revenue and expenditure are not controlled in principle, but capital account revenue and expenditure are still controlled to varying degrees. Most of them are industrialized countries with relatively developed economies, high gross national product, good trade and non-trade balance of payments, certain foreign exchange and gold reserves, and some developing countries and regions with good economic and financial conditions.

3. Nominally, foreign exchange control has been abolished: domestic currency and local currency are allowed to be freely converted into currencies of other countries and regions, and there are no restrictions on the receipt and payment of current account and capital account transactions of non-residents in principle. But in fact, there are direct, indirect or disguised restrictions on non-residents, and there are also restrictions on residents' non-trade foreign exchange receipts and payments. Most industrialized countries and oil-producing countries with surplus balance of payments belong to this type. The gross national product of these countries and regions is very high, and their trade and non-trade exports occupy a considerable share in the international market, and they are rich in foreign exchange and gold reserves.