To provide a radio wave power supply system which is capable of converting received electromagnetic waves into electrical signals and storing the signals, and can be used as a power supply for low-power consumption terminal devices and the like by utilizing the storage function thereof.

The radio wave power supply system 210 is constituted of a tuning circuit A1 which comprises an antenna 10 for converting radio waves of specific frequencies into electrical signals, a coil 11, and a capacitor 12 and tunes electrical signals converted from radio waves by the antenna so that signals of specific frequencies are extracted; a rectifying circuit B1 which comprises a diode bridge 21, rectifies electrical signals obtained from the tuning circuit A1 and outputs the rectified signals as electromotive force, and a storage circuit C1 comprising a secondary battery 31 capable of storing power.