The invention relates to a power transmission cable cleaning device and belongs to the field of a sweeping maintenance device for a power transmission line. Driving parts are arranged at two ends of ashell 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 the foreign matter is cleaned by using a cleaning part, the driving parts arranged at two ends of the shell play the role of positioning, the shaking of equipment is limited, a problem that a cable is scratched caused by the shaking of the cleaning part is avoided, and the safe operation of a transmission cable is ensured.