Whether the market price information is true or not directly affects the correctness of production and operation decisions and operating benefits. Before the emergence of the futures market, producers and operators mainly made decisions based on the spot market price. The spot price is scattered, the information is scattered, one-sided, the accuracy is low, and it is lagging behind. Therefore, it is easy to make mistakes when using the spot market price to guide enterprise decision-making. In contrast, the corn futures market price has the characteristics of authenticity, predictability, continuity and authority, which can accurately reflect the future price trend.

Futures trading is developed from spot trading. At present, corn futures are traded in the United States, Japan, South America, South Africa and other two major corn producing countries 12, among which the Chicago Stock Exchange has the largest trading volume and is the pricing center of corn futures in the world. China's corn futures are now traded on Dalian Commodity Exchange. There is a close relationship between spot price and futures price. Generally speaking, the trend of futures price and spot price is consistent, and with the arrival of contract expiration date, futures price and spot price tend to be consistent.