To provide a dish washer and a control method therefor which can effectively remove smell by simplifying the structure and assembling of the dishwasher.

This dish washer has a casing 22 disposed therein, a smell removing material 21 disposed in the casing 22 to remove smell in the dish washer, a door 23 to selectively open a part of the casing 22 to expose the smell removing material 21, and a door driver to drive the door 23. The control method comprises judging whether drying time of a drying process of the dish washer is over a preset time or not and opening the door when the drying time of the drying process is over the preset drying time.