Basically all banks can exchange Japanese yen, but buying foreign exchange means converting the RMB in your bank card into Japanese yen for consumption, not cash. If you are talking about cash exchange, The Bank of China does the most business. In the past, foreign exchange was generally exchanged at the Bank of China. Now other banks can also do it, such as the Workers' and Peasants' China Construction Diplomatic Relations, but not all outlets can do it. Generally, only the regional branch business headquarters can exchange foreign exchange. For large amounts, you need to do so. You can also make an appointment by calling commercial banks such as CITIC, Industrial Bank, Minsheng, and Pudong Development Bank. However, as I mentioned, you may first need to make an appointment, and secondly, only the branch headquarters and some urban branches may be able to change. Specifically, if you want If you want to change, please call Bank of China customer consultation, or go directly to the door of the Bank of China branch in your city or the branch in the commercial district. You can definitely change inside, but there are usually a lot of strings at the door, and they can also help. If you exchange it, the exchange rate is slightly better than that of the bank. You can rest assured about safety. He will take you inside to exchange it. Ask the banker to help check the banknotes. If you see that the banknotes are OK, just give him money. Although if this happens, The bank will not be held responsible if there is a problem, but generally there will be no problem. If you want to be more reliable, just exchange it at the bank. In fact, the exchange rate is high but not much higher