Japan's foreign exchange market has gone from chaos to standardization for about 20 years. The problems that Japan encountered in the early days of opening its foreign exchange market are also very similar to those that our domestic investors are facing at present. In order to protect the interests of investors, Japanese financial regulators have adopted a series of strict supervision systems to ensure the interests of investors. Especially sensitive to the leverage of foreign exchange margin trading. In 2008, the Japanese government stipulated the upper limit of leverage ratio for foreign exchange margin trading, and at one time it was not allowed to have more than 50 times leverage ratio. Starting from 20 1 1, Japan's supervision has been further contracted, and the maximum leverage is not allowed to exceed 25 times. This regulation is undoubtedly a blow to many foreign brokers, making it difficult for many foreign brokers who provide high leverage to occupy the Japanese market. At present, most foreign exchange transactions in Japan come from local brokers. Japan's foreign exchange margin market has taken measures such as policy prohibition and inducement, trust preservation system, margin ratio system, self-owned fund adjustment ratio and advertising regulations. The promotion of business network, strengthening the advantages of its own platform, network IB and reducing the difference between buying and selling points are all worthy of great attention in the same industry in China.