Article 56 of the Measures for the Administration of Futures Companies stipulates that customers can issue trading orders by written, telephone, computer, internet and other entrustment methods. Where a trading order is issued in written form, the customer shall fill in a written trading order form; Where a trading order is issued by telephone, the futures company shall record it synchronously; Where a trading order is issued by means of entrustment such as computer or Internet, the futures company shall keep the trading order in an appropriate way.