Intermediaries that conduct futures trading on behalf of customers and charge a certain renewal fee are generally called "futures brokerage companies". As can be seen from the above, the commission merchant is the link between the customer and the exchange, and the customer can only participate in futures trading through the commission merchant. Since the commission agent trades on behalf of the customer and collects deposits from the customer, the commission agent also has the responsibility to keep the customer's funds. In order to protect the interests of investors and increase the ability of futures brokers to resist risks, the futures regulatory departments of various governments and futures exchanges have formulated corresponding rules; Restrict and standardize the behavior of agents.