The present invention relates to a multi-rotor aircraft flying traction rope device. The multi-rotor aircraft flying traction rope device comprises a multi-rotor vehicle and a pay-off tackle; the pay-off tackle is mounted on the top of a tower; the tower is provided with brackets located at two ends of the pay-off tackle; the top of one of the brackets is obliquely provided with a baffle; one end of a movable plate is rotationally arranged on the other bracket through a movable shaft, and the other end of the movable plate contacts with the baffle; and a spring is installed between the upper surface of the movable plate and the bracket. According to the multi-rotor aircraft flying traction rope device of the invention, the movable plate can automatically open and close the tackle by means of the elastic force of the spring, an operator does not need to climb to the tower for the second time to arrange a guide rope in the tackle, and therefore, efficiency can be greatly improved from the aspects of labor intensity and time saving, the ejection of the traction rope can be avoided, the labor intensity of the operator can be decreased, and operating time can be reduced.