PURPOSE: A dish washer is provided to prevent noise from being generated due to the contact between a vertical driving roller and a guide rail. CONSTITUTION: A dish washer comprises a main body(10), a door(20), a guide rail(30), and an opening and closing handle(40). A rear wall(11) is formed in the main body. A bent part is bent inward at the rear end of the both sides which are adjacent to the rear wall in the door and the vertical driving roller is formed on the lower end of the bent part. The guide rail is arranged at the outside of the both sides of the washer to slide the vertical driving roller vertically. The opening and closing handle opens and closes the washer body.
