A refrigerator comprising: a cabinet in which an upper storage space and a lower storage space are defined; a door part opening and closing the lower storage space through insertion/withdrawal thereof; and a drawer part connected to the door part so as to be inserted into and withdrawn from the lower storage space and providing an accommodation space, wherein the refrigerator further comprises: a support member which is provided in the drawer part and on which a food or a container can be seated; a draw-out rail connecting the drawer part to an inner wall surface of the storage space and extending in a multistage to insert and withdraw the door part and the drawer part; and an elevation device provided on each of both side surfaces of the drawer part and connected to both side ends of the support member to elevate the support member, a drawer flange having a predetermined width is disposed on an upper end of each of both the side surfaces of the drawer part, and the draw-out rail and the elevation device are disposed inside a space defined below the drawer flange, characterized in that a rail mounting part on which the draw-out rail is mounted is disposed on a lower end of an outer surface of the drawer part, an elevation device mounting part that is recessed in a shape corresponding to that of the elevation device is disposed in an inner surface of the drawer part, and the elevation device mounting part extends from an upper side of the rail mounting part to an upper end of the drawer part, wherein the draw-out rail comprises: a first fixing rail fixedly mounted on the rail mounting part; a second fixing rail disposed below the first fixing rail and fixedly mounted inside the storage space of the cabinet; and an intermediate rail connecting the first fixing rail to the second fixing rail and moving to be slidable with respect to the first fixing rail and the second fixing rail. a support member which is provided in the drawer part and on which a food or a container can be seated; a draw-out rail connecting the drawer part to an inner wall surface of the storage space and extending in a multistage to insert and withdraw the door part and the drawer part; and an elevation device provided on each of both side surfaces of the drawer part and connected to both side ends of the support member to elevate the support member, a drawer flange having a predetermined width is disposed on an upper end of each of both the side surfaces of the drawer part, and the draw-out rail and the elevation device are disposed inside a space defined below the drawer flange, characterized in that a rail mounting part on which the draw-out rail is mounted is disposed on a lower end of an outer surface of the drawer part, an elevation device mounting part that is recessed in a shape corresponding to that of the elevation device is disposed in an inner surface of the drawer part, and the elevation device mounting part extends from an upper side of the rail mounting part to an upper end of the drawer part, wherein the draw-out rail comprises: a first fixing rail fixedly mounted on the rail mounting part; a second fixing rail disposed below the first fixing rail and fixedly mounted inside the storage space of the cabinet; and an intermediate rail connecting the first fixing rail to the second fixing rail and moving to be slidable with respect to the first fixing rail and the second fixing rail. a first fixing rail fixedly mounted on the rail mounting part; a second fixing rail disposed below the first fixing rail and fixedly mounted inside the storage space of the cabinet; and an intermediate rail connecting the first fixing rail to the second fixing rail and moving to be slidable with respect to the first fixing rail and the second fixing rail.