Disclosed is a refrigerator, comprising: a refrigerator body having a cooling chamber; a case comprising a case body having therein an accommodation space of which one side is open, and a transformation preventing member formed of a material having a higher strength than that of the case body, the transformation preventing member provided at an open region of the case body and configured to prevent transformation of the case; a drawer accommodated in the case in a withdrawable manner; and a depressurizing device configured to depressurize inside of the drawer and the case to a pressure lower than an atmospheric pressure, when the drawer is accommodated in the case. Under such configuration, transformation of the case can be prevented, and the case can be easily fabricated.