Abstract:A remote monitoring and control device based on PLC control is developed, which involves intelligent processing unit, data display unit, protection unit, alarm unit and data transmission unit. It can remotely monitor the running state of underground ventilator from the surface and has good stability. It can effectively solve the problems of inconvenient trip judgment, remote roadway, no real-time monitoring, inconvenient maintenance and difficult operation and control. Labor input is reduced, efficiency is improved, and the purpose of reducing cost and increasing efficiency is achieved.