Banks are the official platform for domestic foreign exchange speculation. The central bank is responsible for issuing money, formulating money supply, holding and dispatching foreign exchange reserves to maintain the internal and external value of money. Under the floating exchange rate system, the central bank is often forced to buy and sell foreign exchange in the foreign exchange market to maintain market order. In addition to banks, there are CDK China service providers Nord, Fuhui Fuhui and Jiasheng in the UK; Domestic investors can also choose the Hong Kong platform across a river for trading.

Foreign exchange margin trading means that investors use the trust provided by banks or brokers to conduct foreign exchange transactions. It makes full use of the principle of leveraged investment to conduct forward foreign exchange transactions between financial institutions and financial institutions and investors. At present, the country has not promulgated any laws on foreign exchange, so countries in the gray area neither allow nor enforce the ban.

The leverage ratio of foreign exchange margin trading of domestic banks is low, generally only about 10 times. Some banks don't even have leveraged foreign exchange transactions, and domestic banks' foreign exchange trading spreads are relatively high, and the handling fees are also high.

All domestic platforms that can open accounts are agents of foreign traders. But as long as it is a formal regulatory platform, traders don't have to worry about whether it is legal, because traders on these platforms have strict supervision overseas. If they break the law, they can also revoke their licenses overseas. In addition, China countries do not interfere with citizens' personal investment behavior, and trade in foreign exchange accounts opened on foreign platforms, and the trading behavior also occurs abroad.