The invention provides a robot dust remover. The robot dust remover includes a host body; a control module, an insect eliminating module, a humidifying module, and a dust collection module are arranged on the host body; the control module includes a liquid crystal display screen and control buttons; the insect eliminating module includes a groove, electrical telescopic rods are arranged in the groove, an electrical net is arranged on the electrical telescopic rods, and a light source is arranged on the bottom of the groove; the humidifying module includes a water storage chamber and a sprayingnozzle; the spraying nozzle is positioned on a side surface of the host body; and the dust collection module includes a dust collection chamber, and the dust collection chamber is connected to the host body in a drawing manner. The insect eliminating module and the humidifying module are arranged in the robot dust remover, the functions of the robot dust remover are expanded, the dust removing function, the insect eliminating function and the humidifying function are integrated, other household appliances can be reduced, and the household cost is reduced.