Abstract: A superheated steam generator of an electromagnetic induction type includes: a conduit, which provides a passageway of generated steam; a superheating tank, which is part of the conduit midway through the conduit; and a coil, which is disposed around the superheating tank and is connected to a high-frequency AC power supply, the superheated steam generator further including a magnetic body, disposed inside the superheating tank, which is in contact with the steam in the passage of the steam. According to this construction, superheated steam can be produced more efficiently. In addition, the temperature inside the tank can be increased and decreased more gradually.