A refrigerator comprising: a main body; a storage chamber formed in the inside of the main body, wherein a front part of the storage chamber is configured to be opened; and a door assembly (100, 200) rotatably coupled with the main body, and configured to open and close the open front part of the storage chamber, wherein the door assembly comprises: a door plate including a front plate and a side plate bent in a rear direction from both side edges of the front plate, wherein a bent portion is formed in an upper end of the front plate, a door cap configured to cover a top of the door plate; a door cap support including a coupling portion coupled with the door cap, and fixed at the bent portion such that the coupling portion is positioned behind the bent portion, wherein a gripping groove is formed between the door cap and the bent portion, the gripping groove opening in an upward direction, and wherein the door cap comprises a recessed portion recessed in the downward direction to form the gripping groove together with the bent portion, and a plurality of coupling hooks coupled with the door cap support, wherein the bent portion comprises a first bent portion bent in the rear direction from a top end of the front plate to be at right angles with respect to the front plate, and a second bent portion bent downward from an end of the first bent portion to be at right angles with respect to the first bent portion, wherein a fixing groove is formed between the front plate and the second bent portion, the fixing groove opening in a downward direction, so that the door cap support is inserted into the fixing groove from bottom to top and fixed at the fixing groove, and wherein the door cap support comprises an insertion portion inserted into the fixing groove, and a plurality of protrusion ribs protruding from at least one of a front surface and a rear surface of the insertion portion, and wherein, if the insertion portion is inserted into the fixing groove, the door cap support is fixed to the door plate by the plurality of protruding ribs. a main body; a storage chamber formed in the inside of the main body, wherein a front part of the storage chamber is configured to be opened; and a door assembly (100, 200) rotatably coupled with the main body, and configured to open and close the open front part of the storage chamber, wherein the door assembly comprises: a door plate including a front plate and a side plate bent in a rear direction from both side edges of the front plate, wherein a bent portion is formed in an upper end of the front plate, a door cap configured to cover a top of the door plate; a door cap support including a coupling portion coupled with the door cap, and fixed at the bent portion such that the coupling portion is positioned behind the bent portion, wherein a gripping groove is formed between the door cap and the bent portion, the gripping groove opening in an upward direction, and wherein the door cap comprises a recessed portion recessed in the downward direction to form the gripping groove together with the bent portion, and a plurality of coupling hooks coupled with the door cap support, a door plate including a front plate and a side plate bent in a rear direction from both side edges of the front plate, wherein a bent portion is formed in an upper end of the front plate, a door cap configured to cover a top of the door plate; a door cap support including a coupling portion coupled with the door cap, and fixed at the bent portion such that the coupling portion is positioned behind the bent portion, wherein a gripping groove is formed between the door cap and the bent portion, the gripping groove opening in an upward direction, and wherein the door cap comprises a recessed portion recessed in the downward direction to form the gripping groove together with the bent portion, and a plurality of coupling hooks coupled with the door cap support, wherein the bent portion comprises a first bent portion bent in the rear direction from a top end of the front plate to be at right angles with respect to the front plate, and a second bent portion bent downward from an end of the first bent portion to be at right angles with respect to the first bent portion, wherein a fixing groove is formed between the front plate and the second bent portion, the fixing groove opening in a downward direction, so that the door cap support is inserted into the fixing groove from bottom to top and fixed at the fixing groove, and wherein the door cap support comprises an insertion portion inserted into the fixing groove, and a plurality of protrusion ribs protruding from at least one of a front surface and a rear surface of the insertion portion, and wherein, if the insertion portion is inserted into the fixing groove, the door cap support is fixed to the door plate by the plurality of protruding ribs.