Futures price discovery is an understanding of future prices, and price discovery ensures the existence of the future, just like the determination of spot prices, so futures are also called trading futures. At the same time, the discovery of futures prices provides convenience for relevant producers and consumers to plan production and consumption, and promotes the circulation of commodities. As long as there are speculative transactions, and the transactions are very concentrated, the market price will have the function of future discovery. The function of market price discovery is related to the etymological meaning of the definition of speculation, and is actually related to people's expected transactions. Futures is essentially the future of trading. Because its speculative function is more significant than other markets, the price discovery function is very obvious. This feature of futures price discovery can be considered as the reason why the futures market is often more active than the spot market, and the price fluctuation in the futures market is greater than that in the spot market, because in the latter, traders are very concerned about the specific price level in specific transactions, and they do not fully consider the future information of prices than futures.