A refrigerator of the present invention includes: a casing on which a storage space formed on an inner portion maintains in a vacuum state; a drawer in which food is received and which is supported to enable to be linearly moved by the casing for opening and closing the storage space; and a ventilation hole opening and closing member ventilating the storage space. The drawer includes a ventilation hole to ventilate the storage space with the outside. The ventilation hole opening and closing member is linearly moved in the same direction as the drawer to open and close the ventilation hole.
