The present invention relates to an independently suspended cable cleaning device, belonging to the field of a maintenance and repair device of an electric power transmission line. Driving parts are arranged at two ends of a shell and a cleaning device is arranged in the shell, thus the working mode of the invention is that a nodule foreign matter to be cleaned is 'swallowed' into a body, then theforeign matter is cleaned by using a cleaning part, the driving parts arranged at two ends of the shell are positioned, the shaking of equipment is limited, a problem that a cable is scratched causedby the shaking of the cleaning part is avoided, and the safe operation of a transmission cable is ensured.