The invention discloses a rudder for rapidly turning the flight direction of an aircraft, the invention relates to the technical field of rudder, The left side of the inner wall of the cavity is fixedly connected with the left side of the placing block, the right side of the placing block is overlapped with the left side of the U-shaped plate through a buffer, and the left side of the U-shaped plate is fixedly connected with the right side of the placing block through two electric pushrods. The vertical tail comprises a vertical tail, a right side of which is provided with a cavity, and the left side of the cavity is fixedly connected with the left side of the placing block through a buffer. The rudder that quickly turns the plane 's flight direction, Through the electric push rod, Place blocks, U-plates, shaft, first bearing, The second bearing, the motor, the first gear and the second gear are matched, so that the heading of the aircraft can be controlled, the rotational amplitude ofthe moving wing surface can be enlarged, the contact area with the airflow can be enlarged, sufficient torque can be generated, the heading of the aircraft can be controlled conveniently, and the normal flight of the aircraft can be ensured to a certain extent.