Because of national regulations, a person can only have a quota of 50 thousand dollars a year. If your $50,000 limit is used up, you can entrust your immediate family members to handle the remaining foreign exchange settlement business on your behalf. Of course, this immediate family member also has a quota of 50 thousand dollars a year. When (immediate family members include parents, children and spouses) go to the bank counter to settle foreign exchange, * * people must provide their ID cards, * * people's ID cards and proof of immediate family members. Usually a household registration book or a marriage certificate. Another is to apply for a bank card in Hong Kong. (For example, ICBC's ICBC Asia, China Merchants Bank's smart card, and China Construction Bank's dry port American Express card), because there are no so-called restrictions on the settlement and sale of foreign exchange in Hong Kong, only in Chinese mainland. Only these three cards are introduced here, because only these three cards can be used in Hong Kong in China. Of course, you can do it yourself in Hong Kong.