This article mainly discusses the basic rules of pig futures trading, which is a series of regulations established in the futures market for futures contracts with pigs as the subject matter. On this special trading platform, participants need to follow specific rules to ensure fair and orderly transactions. First, the contract is based on standardized pigs, with each contract representing 10 tons of pigs. In terms of pricing, the price unit of the trading unit is 1 yuan/ton, and the minimum price change unit is also 1 yuan/ton, which means that any price change must reach this minimum unit. In addition, in order to control market fluctuations, pig futures have set price limits, that is, the maximum price fluctuation in a day cannot exceed 5% of the settlement price of the previous trading day. These rules together constitute the core framework of pig futures trading. For participants, understanding and complying with these rules are necessary conditions for effective trading.