The present invention relates to a method of controlling a washing machine comprising an outer tub containing water, an inner tub which accommodates laundry and is rotatably installed in the outer tub, a dispenser which supplies detergent into the inner tub, and a spray nozzle for spraying water into the inner tub, including the steps of: (a) supplying water into the inner tub via the dispenser; (b) supplying water into the inner tub through the spray nozzle, during when water is supplied into the inner tub via the dispenser; and (c) rotating the inner tub at a cloth wetting speed at which at least some of the laundry in the inner tub is adhered to an inner surface of the inner tub and can be rotated integrally with the inner tub, during when water is supplied through the spray nozzle.