The utility model relates to a self propelled rope carrier used in a cable crane. A machine frame is composed of a friction clutch, a travelling wheel, a main cable pressure roller, a sprocket device, a traction rope pressure roller, a tension sprocket, a friction wheel, a pulling rope anti-jumping wheel, a pulling rope supporting wheel and a connecting rod mechanism assembly from the top to the bottom. A small carriage moves forward or backward flowing the lifting of the cable crane. The distance between the small carriage and the bearing point of a main cable is uniformly divided into several identical portions, and the friction wheel and the supporting wheel on the rope carrier are respectively support a traction rope and a pulling rope of the small carriage; besides, the traveling wheel is supported by the main cable, each rope carrier operates in different working speed according to the distance between the small carriage and the rope carriers, and the distance between the rope carriers is uniformly kept. After a period of operation, the small carriage of the cable crane can move towards one end when a suspension hook is lowered because of the distance difference between each rope carrier, so as to make the small carriage impact the connecting rod on the rope carrier. A clutch is opened, the friction wheel and the traveling wheel respectively rotate, and each rope carrier forced to pile together is reset to zero.