Raise the exchange rate. The external settlement method, also known as foreign exchange payment method or payment method, refers to various payment shortcuts that need to be paid for shopping or consumption. It consists of payment instruments (bank drafts, checks and other payment vouchers), payment time, payment place and credit (including commercial credit and bank credit), with the purpose of preventing foreign exchange from being intercepted and increasing the exchange rate. Non-trade receipt and payment of foreign exchange refers to the behavior of domestic institutions or individuals who need to pay foreign exchange abroad for non-goods trade such as technology transfer, franchise use and labor services.