The invention provides an automatic pushing-pulling device of an overhead manned cable car. The automatic pushing-pulling device comprises a guide part and at least one driving part, wherein the driving part comprises a driving wheel and tensioning resisting wheels arranged at two sides of the driving wheel; the driving wheel is arranged at one side of an upper-layer steel wire rope on the cable car; the two tensioning resisting wheels are arranged at the other side of the upper-layer steel wire rope; the driving wheel is connected with the guide part through a transmission shaft; the guide part comprises an arc-shaped paved rail adaptive to a corner radian; a machine head guide wheel and a machine tail guide tail wheel are arranged at two ends of the paved rail respectively; the driving wheel is connected with the machine head guide wheel or the machine tail guide tail wheel; a transmission belt is arranged between the machine head guide wheel and the machine tail guide tail wheel; aplurality of pulling claws are arranged at the outer side of the transmission belt.