Abstract: In order to save water and realize irrigation automation, an automatic drip irrigation scheme based on dual RTU is proposed. The two RTU systems could implement automatic irrigation independently, supervise each other and be standby. Zapping the fields in the area supplied by the pump improved the utilization of both systems. For crops with strict water requirements, according to the feedback information of soil moisture, we used the intelligent irrigation control system to implement automatic irrigation. The low-cost swipe card irrigation control system was used to irrigate large areas of the same crops. Users could send irrigation instructions via IC card swipe or mobile phone, and view information such as water and electricity bills on the RTU screen or mobile phone. At the same time, RTU would send irrigation information to the monitoring center for data processing. Practice shows that this system has important research significance in water saving, time saving and labor saving.