Secondly, if you have less change, you can go to the bank directly with your bank card and ID card. If you change a lot of foreign currencies, first take your bank card to the bank's foreign currency purchase machine to purchase foreign exchange. Calculate the exchange rate on the exchange date and deposit enough RMB in the bank card before buying foreign exchange.
Third, after purchasing foreign exchange, you need to make an appointment with the bank about how much foreign currency you want to withdraw, preferably in the morning. You can withdraw about $8,000 in other foreign currencies at most every day, and you can't withdraw foreign currencies for more than three consecutive days. Specific banks have their own regulations and can consult in advance.
Fourth, exchange foreign currency at the counter. Still have to bring your ID card and bank card. You need a letter to wrap it after you take it. Be safe!
Fifth, when you buy foreign exchange, you will spend less when you choose a day with a low exchange rate.
Sixth, if you have inexhaustible foreign currency, choose a day when the exchange rate is high and go to the bank to change it into RMB.