Short selling of futures, also known as short selling, means that investors sell futures contracts first, then buy them back at a lower price in the future and deliver them on the delivery date. Investors who short futures believe that the price of the underlying assets will fall, thus earning the difference profit by selling futures contracts. Shorting futures requires strong analytical and forecasting skills, especially focusing on market risks and fluctuations, as well as trading opportunities in the right direction. Once short futures fluctuate against the trend, they may have to bear greater loss risks, and investors need to make corresponding risk management plans in advance.