A wireless power receiving device that wirelessly receives power, comprising: a power receiving coil (L2); a rectifying unit configured to rectify alternating-current power received by the power receiving coil (L2) to direct-current power; a charging unit configured to charge a power storage device (B) with the direct-current power; and a voltage detection unit configured to detect an output voltage value of the rectifying unit ; a power reduction unit including a switching element (SW1) that is connected to the charging unit in parallel; and characterized by further comprising: a control unit configured to control operations of the switching element (SW1), wherein in a case where the output voltage value detected by the voltage detection unit exceeds a first reference voltage value set in advance, the control unit controls and turns the switching element (SW1) on by applying a voltage to the switching element (SW1), such that a current fed from the rectifying unit is distributed and flows into the charging unit and the switching element (SW1), wherein the control unit controls a value of the voltage to be applied to the switching element (SW1) so that a difference between a voltage value calculated on the basis of a current flowing in the switching element (SW1) and a second reference voltage value set in advance decreases. a power receiving coil (L2); a rectifying unit configured to rectify alternating-current power received by the power receiving coil (L2) to direct-current power; a charging unit configured to charge a power storage device (B) with the direct-current power; and a voltage detection unit configured to detect an output voltage value of the rectifying unit ; a power reduction unit including a switching element (SW1) that is connected to the charging unit in parallel; and characterized by further comprising: a control unit configured to control operations of the switching element (SW1), wherein in a case where the output voltage value detected by the voltage detection unit exceeds a first reference voltage value set in advance, the control unit controls and turns the switching element (SW1) on by applying a voltage to the switching element (SW1), such that a current fed from the rectifying unit is distributed and flows into the charging unit and the switching element (SW1), wherein the control unit controls a value of the voltage to be applied to the switching element (SW1) so that a difference between a voltage value calculated on the basis of a current flowing in the switching element (SW1) and a second reference voltage value set in advance decreases. a control unit configured to control operations of the switching element (SW1), wherein in a case where the output voltage value detected by the voltage detection unit exceeds a first reference voltage value set in advance, the control unit controls and turns the switching element (SW1) on by applying a voltage to the switching element (SW1), such that a current fed from the rectifying unit is distributed and flows into the charging unit and the switching element (SW1), wherein the control unit controls a value of the voltage to be applied to the switching element (SW1) so that a difference between a voltage value calculated on the basis of a current flowing in the switching element (SW1) and a second reference voltage value set in advance decreases. <EOS>