The purpose of the present invention is to provide a non-contact power supply device that reduces the heating temperature of impurities that have penetrated into an area near the power supply coil and that enables uninterrupted power supply. A non-contact power supply device for the non-contact supply of electrical power to a moving body using magnetic induction comprises a power supply coil (10) for supplying electrical power by generating a magnetic field, a separating part (15) for separating the power supply coil from impurities that have penetrated to the surface of the non-contact power supply device, and a drive part (17) for generating driving force that varies the position of the separating part. The drive part generates driving force that alters the position of the separating part so that the separating part draws closer to the side of a power-receiving coil (30) of the moving body more when the power supply coil is supplying power than when the power supply coil is not supplying power.
