Abstract: A remote monitoring system of coal mine motor based on B/S structure was proposed. Firstly, the paper introduced the overall design idea of the system. Then, the cloud server platform was built, and the client software was developed on this platform. Based on the B/S structure and combined with IoT technology, the system can realize remote continuous monitoring of important operating parameters of one or more coal mine motors. Finally, the test results showed that the system is stable and reliable. The system realizes the remote continuous monitoring of coal mine motors.