Overseas remittance is a business activity that commercial banks handle remittance for customers or settle the relationship between creditor's rights and debts through the transfer of funds between their overseas branches or correspondent banks. According to whether the delivery direction of settlement tools is consistent with the movement direction of funds, it can be divided into forward remittance (remittance method) and reverse remittance (collection method). There are three remittance methods: telegraphic transfer, M/T and D/D. The cost and exchange rate of telegraphic transfer are higher, while the cost and expenses of telegraphic transfer and D/D are lower, but it takes a long time to delay customers' money. The remittance settlement method generally involves the remitter, the payee, the remitting bank and the collecting bank (or collecting bank). If there is no direct relationship between the remitting bank and the collecting bank, other banks are needed to remit money. The currency used for remittance settlement is generally determined by the remitter. If the remittance currency is different, it needs to be calculated according to the buying price and selling price of the day before remittance. When the remitting bank collects foreign currency remitted in local currency from the remitter, it shall be calculated according to the bank's foreign exchange purchase price; When remitting money to the payee, if the remittance is in foreign currency, the remitting bank can pay the foreign currency directly or calculate the fee according to the payee's opinion.