Jumping method of autorotorcraft

The invention relates to an autorotorcraft jumping method which comprises the following steps: step 1, setting the gravity center of a lift rotor at the outer end of the rotor, starting the autorotorcraft, and starting to rotate the lift rotor to reach a first preset rotating speed; 2, the total pitch of the lift rotor wings is increased through a propeller disc, the rotation kinetic energy of the lift rotor wings is converted into height potential energy, and the aircraft body rises; the thrust propellers rotate and are lifted to the highest rotating speed, the thrust propellers push the machine body to move forwards, and the forward wind speed of the machine body blows the lift rotors to keep rotating so as to continuously generate lift; 3, the gravity center of the lift rotor is contracted to a propeller disc, the propeller disc reduces the total pitch of the lift rotor, the rotation kinetic energy of the lift rotor is gradually increased along with contraction of the gravity center, the rotation speed of