Foreign exchange certificates can be converted into foreign currency. Foreign exchange certificates are a special currency in the early days of reform and opening up. At that time, foreign exchange was forbidden to circulate in China. In order to facilitate foreigners to spend money in China, the state has issued foreign exchange certificates. Foreign exchange certificates and RMB are in equal circulation. They can not only be exchanged for foreign currency cash, but also be consumed in foreign-related hotels or purchased in friendship stores, which used to be a symbol of many people's status.