Wing rear edge flaperon using method for improving high-attack-angle pitching characteristic of aircraft

The invention belongs to the field of aerodynamic layout design of aircrafts, and particularly relates to a wing rear edge flaperon using method for improving the high-attack-angle pitching characteristic of an aircraft. The method comprises the steps that rear edge flaperons are arranged on the rear edges of the wings of a fighter, the wings include a left wing and a right wing, the rear edge of the left wing is provided with a left rear edge flaperon, and the rear edge of the right wing is provided with a right rear edge flaperon; when the attack angle of the aircraft is larger than a first attack angle threshold value and the aircraft needs to provide a head lowering torque, the rear edges of the left rear edge flaperon and the right rear edge flaperon simultaneously deflect downwards by a first preset deflection degree; and when the aircraft needs to provide a head-up torque, the rear edges of the left rear edge flaperon and the right rear edge flaperon simultaneously deflect upwards by a second preset de