The present invention relates to a dishwasher which can supply washing water to a dish stored in a case to remove a foreign substance remaining on the dish. According to the present invention, the dishwasher comprises: a case which provides a washing space and has an opened surface; a rack which is disposed in the case and provides a storage space for a washing object; a door to open and close the opened surface and withdraw the rack from the case; and a spray unit which is disposed in the case and sprays washing water to the rack.
