A refrigerator comprising: a body; a storage compartment that is provided in the body such that a front portion of the storage compartment is open and comprises a refrigerator compartment and a freezer compartment; an inner door that has an opening having a size corresponding to the refrigerator compartment and is adapted to open/close the refrigerator compartment, the opening having a plurality of door guards; an outer door that is adapted to open/close the opening; a first upper hinge comprising a first coupling part coupled to an upper portion of the body and a first extension part that extends from the first coupling part to the inner door and is rotatably coupled to the inner door with an upper hinge shaft; a second upper hinge comprising a second coupling part coupled to an upper portion of the outer door and a second extension part that extends from the second coupling part to the inner door and is rotatably coupled to the upper hinge shaft coupled to the first upper hinge; an upper door cap that is coupled to an upper portion of the inner door and has a hinge accommodation part in which the first extension part and the second extension part are accommodated; a cam unit that is coupled to the hinge accommodation part and comprises an insertion tube into which the upper hinge shaft is rotatably inserted and a first cam surface formed along a circumference of the insertion tube; and a first connector that is coupled to the second upper hinge to be movable in a vertical direction, such that if the outer door is opened, the first connector rotates together with the outer door and moves in an upward direction along the first cam surface, after which the first connector is adapted to move in a downward direction due to gravity and to thereby transmit a rotational force to the outer door in a direction in which the outer door is closed. a body; a storage compartment that is provided in the body such that a front portion of the storage compartment is open and comprises a refrigerator compartment and a freezer compartment; an inner door that has an opening having a size corresponding to the refrigerator compartment and is adapted to open/close the refrigerator compartment, the opening having a plurality of door guards; an outer door that is adapted to open/close the opening; a first upper hinge comprising a first coupling part coupled to an upper portion of the body and a first extension part that extends from the first coupling part to the inner door and is rotatably coupled to the inner door with an upper hinge shaft; a second upper hinge comprising a second coupling part coupled to an upper portion of the outer door and a second extension part that extends from the second coupling part to the inner door and is rotatably coupled to the upper hinge shaft coupled to the first upper hinge; an upper door cap that is coupled to an upper portion of the inner door and has a hinge accommodation part in which the first extension part and the second extension part are accommodated; a cam unit that is coupled to the hinge accommodation part and comprises an insertion tube into which the upper hinge shaft is rotatably inserted and a first cam surface formed along a circumference of the insertion tube; and a first connector that is coupled to the second upper hinge to be movable in a vertical direction, such that if the outer door is opened, the first connector rotates together with the outer door and moves in an upward direction along the first cam surface, after which the first connector is adapted to move in a downward direction due to gravity and to thereby transmit a rotational force to the outer door in a direction in which the outer door is closed.