HEATED TOILET SEAT DEVICE

PROBLEM TO BE SOLVED: To provide a heated toilet seat device in which a lateral face of a toilet seat body can be prevented from being not heated enough when a user sits on a toilet seat, by enabling the lateral face of the toilet seat body to be quickly heated.SOLUTION: The heated toilet seat device includes: the toilet seat body, the outer surface of which is a seated surface; a toilet seat base plate coupled to the toilet seat body through hook structure; and a heating part disposed in a cavity part formed between the toilet seat body and the toilet seat base plate. The hook structure is composed of a projecting part formed at the lowermost end of the peripheral edge of the toilet seat body and a recessed part formed on the peripheral edge of the toilet seat base plate and engaged with the projecting part. The heating part is stretched over the inner surface of the toilet seat body, and the lower end edge of the heating part is extended to the lowermost end of the toilet seat body.