English: foreign exchange settlement. The compulsory settlement and sale of foreign exchange under current account is one of the important contents of China's foreign exchange management system reform from 65438 to 0994. The system requires that foreign exchange in the hands of enterprises and individuals must be sold to designated foreign exchange banks, which must sell foreign exchange in the market beyond the amount of positions approved by the State Administration of Foreign Exchange. As the market receiver, the general central bank buys foreign exchange to accumulate national foreign exchange reserves. The compulsory foreign exchange settlement and sale system met the needs of foreign exchange management at that time. It has played a positive role in promoting the continuous improvement of foreign exchange receipts and payments, increasing foreign exchange reserves and maintaining the long-term basic stability of the RMB exchange rate. With the deepening of the reform of the foreign exchange system, in order to meet the needs of the economic situation, foreign exchange management policies have been adjusted many times.