Financial futures are generally divided into three categories: currency futures, interest rate futures and index futures. As a kind of futures, financial futures have the general characteristics of futures. However, compared with commodity futures, the contract object is not physical goods, but traditional financial goods, such as securities, currency, interest rates and so on. Financial futures came into being in the American market in1970s. At present, financial futures have been ahead of commodity futures in many aspects, accounting for the overall trading volume of the futures market.