A wireless power supply system, comprising: - at least one power transmission device (101, 101a) provided on the ground and configured to transmit power, and - a power reception device attached to a vehicle and configured to receive power transmitted from the power transmission device (101, 101a) and supply the power to an electric load comprising a battery, wherein: - the power transmission device (101, 101a) includes - a power transmission coil (11, 11a) provided at a parking space (32, 32a) and configured to transmit power, - a power-supply control unit configured to control power to be supplied to the power transmission coil (11, 11a), and - a power-transmission-side communication unit configured to communicate with the power reception device, - the power reception device includes - a power reception coil configured to receive power transmitted from the power transmission coil (11, 11a) and supply the received power to the electric load through a capacitor, - a power-reception control unit configured to control power reception of the power reception coil, and - a power-reception-side communication unit configured to communicate with the power transmission device (101, 101a), - when the vehicle approaches the parking space (32, 32a), the power-supply control unit is configured to set the power transmission coil (11, 11a) to first excitation in which the power transmission coil (11, 11a) is excited in an excitation pattern containing identification data, - the power-reception control unit is configured to - to pre-charge the capacitor after the vehicle approaches the parking space (32, 32a) by connecting the battery to the capacitor, - to acquire the identification data when the power transmission coil (11, 11a) is in the first excitation, and - to transmit the acquired identification data to the power transmission device (101, 101a), and - the power-supply control unit is configured to pair the power transmission device (101, 101a) and the power reception device with each other if the identification data contained in the excitation pattern and the identification data acquired by the power-reception control unit match each other. - at least one power transmission device (101, 101a) provided on the ground and configured to transmit power, and - a power reception device attached to a vehicle and configured to receive power transmitted from the power transmission device (101, 101a) and supply the power to an electric load comprising a battery, - the power transmission device (101, 101a) includes - a power transmission coil (11, 11a) provided at a parking space (32, 32a) and configured to transmit power, - a power-supply control unit configured to control power to be supplied to the power transmission coil (11, 11a), and - a power-transmission-side communication unit configured to communicate with the power reception device, - a power transmission coil (11, 11a) provided at a parking space (32, 32a) and configured to transmit power, - a power-supply control unit configured to control power to be supplied to the power transmission coil (11, 11a), and - a power-transmission-side communication unit configured to communicate with the power reception device, - the power reception device includes - a power reception coil configured to receive power transmitted from the power transmission coil (11, 11a) and supply the received power to the electric load through a capacitor, - a power-reception control unit configured to control power reception of the power reception coil, and - a power-reception-side communication unit configured to communicate with the power transmission device (101, 101a), - a power reception coil configured to receive power transmitted from the power transmission coil (11, 11a) and supply the received power to the electric load through a capacitor, - a power-reception control unit configured to control power reception of the power reception coil, and - a power-reception-side communication unit configured to communicate with the power transmission device (101, 101a), - when the vehicle approaches the parking space (32, 32a), the power-supply control unit is configured to set the power transmission coil (11, 11a) to first excitation in which the power transmission coil (11, 11a) is excited in an excitation pattern containing identification data, - the power-reception control unit is configured to - to pre-charge the capacitor after the vehicle approaches the parking space (32, 32a) by connecting the battery to the capacitor, - to acquire the identification data when the power transmission coil (11, 11a) is in the first excitation, and - to transmit the acquired identification data to the power transmission device (101, 101a), and - to pre-charge the capacitor after the vehicle approaches the parking space (32, 32a) by connecting the battery to the capacitor, - to acquire the identification data when the power transmission coil (11, 11a) is in the first excitation, and - to transmit the acquired identification data to the power transmission device (101, 101a), and - the power-supply control unit is configured to pair the power transmission device (101, 101a) and the power reception device with each other if the identification data contained in the excitation pattern and the identification data acquired by the power-reception control unit match each other.