A sauna device comprises a sauna room installed with a first heating element and a heating room installed below the sauna room, and includes an air-intake hole and an air-vent hole for introducing air from outside to the sauna room and a second heating element, such that since a heating body is provided in a lower portion of the floor of the sauna room and it is heated by a radiative heat, the floor of the sauna room is kept in a constant temperature, so as to provide a convenient usage and the sauna room can be kept refreshing through air circulation.
