The invention provides a man-riding device and system for conductor operation. The man-riding device for the conductor operation comprises a hanging bracket, and a central shaft and a pulley located on the inner side of the hanging bracket, wherein the hanging bracket is used for hanging of an operator or an object to be hung; the central shaft is sleeved by the pulley; the two ends of the centralshaft are rotationally connected with the two sides of the hanging bracket in the width direction in one-to-one correspondence; and the central shaft drives the pulley to move along a conductor whilerotating relative to the hanging bracket.