To provide a device and a method for forming metallic belt parts, which can perform a plurality of times of bending work accurately on a metallic belt member and makes automatic working possible.

A device for forming metallic belt parts includes: a rotating die 6 provided with an outer peripheral shape copying the shape of the inside surface of the metallic belt parts 5 formed by bending a metallic belt member 4; and a winding body 7 with which the metallic belt member is inserted between itself and the outer periphery of the rotating die and wound around a rotating die by the rotation of the rotating die. A method for forming metallic belt parts forms a metallic belt member so as to copy the outer peripheral shape of the rotating die by rotating the rotating die after inserting the metallic belt member between the winding body, which is wound around the outer periphery of the rotating die provided with the outer peripheral shape copying the shape of the inside surface of the metallic belt parts formed by bending the metallic belt member, and the rotating die.