PURPOSE: A far infrared ray is radiated through a heat exchanger to the food to cook the food without burning, thereby obtaining a barbecue of good quality. CONSTITUTION: A main body(10) is composed of a cooking chamber inside, and the main wall is formed of an insulation material. A heat exchanger(41) is arranged in one side of the main body to radiate far infrared heat to outside of a pipe by coating oxidized film in the pipe. A motor is installed in upper part of the main body. A power transferring member is connected to the rotation shaft of the motor. A plurality of rotating member is connected to the rotation shaft of the motor to rotate.