A washing machine which deodorizes an object placed in the washing machine using functional water independently of a washing process, and a control method thereof. The washing machine includes a tub to contain wash water therein, a drum rotatably installed in the tub, and deodorizing means which includes a functional water producing unit to produce functional water having a deodorizing effect, a heating tank to receive and to heat the functional water, and a steam supply pipe to supplying steam obtained from the functional water heated by the heating tank, to an object placed in the drum to be deodorized.