The invention discloses a method of taking off and landing of an aircraft carrier plane and a device thereof. The device comprises a windmill type rotating mechanism arranged on an aircraft carrier body, wherein, the rotating mechanism is provided with a group of cantilever arms; a protruding end of each cantilever arm is provided with a lift platform with adjustable inclination angle and a launch pad. The plane is fixed on the launch pad before taking off; the rotating mechanism is started, when the plane reaches takeoff altitude and takeoff speed, a fixed device is released to lead the plane to take off automatically along the tangential line, so that the takeoff of the plane is completed; when the plane lands, the lift platform floats on sea level, when the plane approaches the lift platform of the rotating mechanism, the inclination angle of the launch pad is matched with the flight altitude and speed of the plane, an arresting device is used for leading the plane to directly land on the lift platform, the rotating speed of the rotating mechanism is gradually reduced until the rotating mechanism stops, thereby the landing of the plane is completed. The method and the device of the invention change the mode of the original aircraft carrier body, can change the shape of the aircraft carrier body, improves the flexibility and reduces the use cost.