To provide an electromagnetic induction type oscillating power generator capable of reducing magnetic leakage to the outside so that the magnetic flux density of a permanent magnet penetrating a coil is raised to improve power generation efficiency, and capable of decreasing the number of connection members such as a conductor that electrically connects a capacitor to electrodes.

The oscillating power generator is equipped with a cylindrical member 40 made of a conductive, magnetic material and disposed outside a coil 60. An induced current generated at the coil is supplied to an electricity-storage unit 90. The electricity-storage unit 90 is electrically connected to a minus electrode 30 through the cylindrical member 40.