Abstract: Provided is a spit roaster comprising: a body having an opening communicating with an exhaust duct, formed at the center of the bottom wall thereof, and an air supply path defined at both ends thereof with respect to the longitudinal direction thereof and having an upper and a lower opening, a range case removably housed within the above body with required clearances therearound; a range removably housed within the above range case having a charcoal receiving space defined therein and support members disposed at both ends thereof with respect to the longitudinal direction thereof for supporting members for mounting materials to be cooked; and smoke exhaust frames communicating with the above exhaust duct, removably disposed upon the upper opening of an exhaust space defined between the rear side wall of the range case and the body, and having smoke exhaust inlets defined within the front sides thereof facing toward the range case.