An electric power transmission apparatus for a vehicle includes: a radio receiver that is capable of receiving a radio wave of a predetermined frequency transmitted from outside of the vehicle, and that is capable of executing a search operation of searching for the radio wave by shifting reception frequency from a current reception frequency at a predetermined shift speed, and stopping shifting of the reception frequency when a radio wave is received at or above a predetermined receiving intensity; and an on-vehicle device that interrupts transmission of the electric power to a mobile device performed by an electric power transmitter while the radio receiver is executing the search operation.