Abstract: Provided are an automatically position adjustable wireless charger and a charging method using the same, the wireless charger, including: a plurality of power transmission coil units having a power transmission coil for generating an induced current in a power reception coil of a portable terminal using electromagnetic induction; a power transmission circuit unit for supplying a current to the power transmission coil; a drive unit for moving a position of the power transmission coil unit; a power transmission unit for enabling the plurality of power coil units to be eccentrically rotated by transmitting power from the drive unit to the plurality of power coil units; and a control unit for stopping the drive unit and enabling the current to be supplied to the power transmission coil when a voltage applied to the power transmission coil is reduced by the power transmission coil being aligned at the power reception coil.