A power reception device, comprising: a vehicle-side resonant portion mountable on a vehicle and resonating, through an electromagnetic field, with a facility-side resonant portion provided in an external facility; and a vehicle-side support including a first support member (49, 50) supporting said vehicle-side resonant portion, and a second support member spaced apart from said vehicle-side resonant portion and supporting said first support member, wherein a dielectric tangent of said first support member is smaller than a dielectric tangent of said second support member, wherein said vehicle-side resonant portion includes a first resonant coil formed by winding a first coil wire, said second support member includes a circumferential surface (52, 53) extending along said first resonant coil, the power reception device further comprising: a first electromagnetic induction coil extending along said circumferential surface of said second support member, spaced apart from said first resonant coil, and being capable of receiving electric power from said first resonant coil by electromagnetic induction; and a third support member provided on said circumferential surface of said second support member and supporting said first electromagnetic induction coil, wherein one of said first support member and said third support member is provided to be relatively movable with respect to the other such that a spacing between said first resonant coil and said first electromagnetic induction coil can be adjusted. a vehicle-side resonant portion mountable on a vehicle and resonating, through an electromagnetic field, with a facility-side resonant portion provided in an external facility; and a vehicle-side support including a first support member (49, 50) supporting said vehicle-side resonant portion, and a second support member spaced apart from said vehicle-side resonant portion and supporting said first support member, wherein a dielectric tangent of said first support member is smaller than a dielectric tangent of said second support member, wherein said vehicle-side resonant portion includes a first resonant coil formed by winding a first coil wire, said second support member includes a circumferential surface (52, 53) extending along said first resonant coil, the power reception device further comprising: a first electromagnetic induction coil extending along said circumferential surface of said second support member, spaced apart from said first resonant coil, and being capable of receiving electric power from said first resonant coil by electromagnetic induction; and a third support member provided on said circumferential surface of said second support member and supporting said first electromagnetic induction coil, wherein a first electromagnetic induction coil extending along said circumferential surface of said second support member, spaced apart from said first resonant coil, and being capable of receiving electric power from said first resonant coil by electromagnetic induction; and a third support member provided on said circumferential surface of said second support member and supporting said first electromagnetic induction coil, wherein one of said first support member and said third support member is provided to be relatively movable with respect to the other such that a spacing between said first resonant coil and said first electromagnetic induction coil can be adjusted.