In one embodiment, a refrigerator includes: a heat exchange pipeline which is accommodated in an inner wall of a vacuum adiabatic body and in which heat exchange of a refrigerant is performed; a through-part through which a refrigerant pipe provided in at least one of the first plate member or the second plate member to provide the heat exchange pipeline passes; and a sealing member configured to accommodate the inlet pipe and the outlet pipe therein and coupled to at least one of the first plate member or the second plate member to restrict gas communication between the refrigerant pipe and the vacuum space part.