A refrigerator comprising: a cabinet having a storage space therein; a drawer slidably movable into and out from the storage space, wherein the drawer comprises a door and a storage box provided at an inner surface of the door; an elevation plate disposed within the drawer; and an elevation device for lifting the elevation plate, the elevation device accommodated at or within the door, and wherein the elevation device comprises: a driving motor; a first curved rack configured to be rotated by the driving motor, the first curved rack being curved and having an outer circumferential surface; and a second curved rack being curved and having an outer circumferential surface being engaged with the outer circumferential surface of the first curved rack; characterized in that the elevation device further comprises: a first elevation bar coupled at one end to the first curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; and a second elevation bar coupled at one end with the second curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; wherein the first elevation bar and the second elevation bar are coupled to the first curved rack and to the second curved rack, respectively, such as to move in an arc-shape to lift or lower the elevation plate and to traverse horizontally in directions that are away from each other or closer to each other with respect to the elevation plate. a cabinet having a storage space therein; a drawer slidably movable into and out from the storage space, wherein the drawer comprises a door and a storage box provided at an inner surface of the door; an elevation plate disposed within the drawer; and an elevation device for lifting the elevation plate, the elevation device accommodated at or within the door, and wherein the elevation device comprises: a driving motor; a first curved rack configured to be rotated by the driving motor, the first curved rack being curved and having an outer circumferential surface; and a second curved rack being curved and having an outer circumferential surface being engaged with the outer circumferential surface of the first curved rack; characterized in that the elevation device further comprises: a first elevation bar coupled at one end to the first curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; and a second elevation bar coupled at one end with the second curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; wherein the first elevation bar and the second elevation bar are coupled to the first curved rack and to the second curved rack, respectively, such as to move in an arc-shape to lift or lower the elevation plate and to traverse horizontally in directions that are away from each other or closer to each other with respect to the elevation plate. a driving motor; a first curved rack configured to be rotated by the driving motor, the first curved rack being curved and having an outer circumferential surface; and a second curved rack being curved and having an outer circumferential surface being engaged with the outer circumferential surface of the first curved rack; characterized in that the elevation device further comprises: a first elevation bar coupled at one end to the first curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; and a second elevation bar coupled at one end with the second curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; wherein the first elevation bar and the second elevation bar are coupled to the first curved rack and to the second curved rack, respectively, such as to move in an arc-shape to lift or lower the elevation plate and to traverse horizontally in directions that are away from each other or closer to each other with respect to the elevation plate. a first elevation bar coupled at one end to the first curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; and a second elevation bar coupled at one end with the second curved rack and being movably engaged at the other end opposite to the one end with the elevation plate; wherein the first elevation bar and the second elevation bar are coupled to the first curved rack and to the second curved rack, respectively, such as to move in an arc-shape to lift or lower the elevation plate and to traverse horizontally in directions that are away from each other or closer to each other with respect to the elevation plate.