Pay-off tool for motor train unit

The utility model provides a motor train unit paying-off tool, and belongs to the technical field of motor train unit cavity threading. The motor train unit paying-off tool comprises a supporting assembly and a plurality of paying-off discs; the supporting assembly is provided with a supporting column extending upwards in the vertical direction, and the lower end of the supporting column is used for being supported in a preset area. A first sleeve is arranged outside the supporting column; the multiple pay-off reels are arranged on the first sleeve at intervals in the vertical direction, and the pay-off reels are rotationally connected with the first sleeve; a plurality of pay-off rods are arranged on the peripheral wall of each pay-off reel at intervals, and the pay-off rods extend in the radial direction of the pay-off reel; the pay-off rod is used for installing a wire harness. According to the motor train unit paying-off tool provided by the utility model, simultaneous operation of a plurality of wire har