As for the band trading system, it is an automatic trading program based on band trading strategy, which can trade automatically to reduce the delay caused by manual trading and the objectivity of trading. At present, the western foreign exchange market has successfully developed rubber band trading system, Zheng Mian band trading system and stock band trading system. As for the income, we can get the profitability of these band trading systems through long-term test or real test. For example, manual operation can refer to the moving average trading method, and automatic trading can refer to the Mandarin trading model.