A power transfer device comprises a power transfer coil, a case that has a surface extending along a direction perpendicular to an axial direction of the power transfer coil and stores the power transfer coil, a rotating shaft rotatable about the shaft that extends in the axial direction of the power transfer coil at a central portion in a radial direction of the power transfer coil and has one end penetrating the surface and protruding outward through the surface and a foreign object remover that projects outwardly from the one end of the rotating shaft in a radial direction of the rotating shaft and moves on the surface.