Rootstock feeding method and device for melon and fruit grafting

The invention discloses a rootstock feeding method and device for melon and fruit grafting. The rootstock feeding device comprises a revolution motor, a rootstock revolution structure, a revolution arm and a limiting supporting flat plate; the rootstock revolution structure is fixedly mounted on the upper surface of the revolution motor; a shaft rod in the rootstock revolution structure is fixedly connected with an output shaft of the revolution motor; autorotation motors are symmetrically mounted on the lower surfaces of the two sides of the revolution arm; limiting motors are mounted on the lower surfaces of the two ends of the limiting supporting panel; and limiting clamps are mounted at the two ends of the limiting supporting flat plate. The revolution arm is driven by the revolution motor to rotate, the stock is switched between a feeding station and a receiving station, the autorotation motors drive the stock to rotate through a gear, the direction of a stock matrix is determined through upward stretchi