Abstract: The rotor of the generator motor operates at high speeds and under complex conditions, making it prone to accidents and a focal point for inspection in power stations. In response to this need, this paper presents an application case of a visual monitoring system for the rotor of a generator motor from three aspects: engineering application scenarios, hardware design solutions, and software solutions. The system is capable of visually monitoring the rotor of the generator motor and automatically analyzing the conditions of the magnetic pole bolts and the lead-out wires.