A refrigerator comprising: a main body having at least one storage compartment; first and second doors to open or close the at least one storage compartment; a pillar rotatably connected to the first door by a hinge (340, 360, 370, 440) to prevent cool air from leaking between the first and second doors; and a holder disposed on the storage compartment to guide rotation of the pillar; a rotation shaft (350, 444) to enable the pillar to rotate; a hinge body (355, 450) coupled to the first door and to which the rotation shaft (350, 444) is connected; and a rotation restriction unit contacting the holder to move the rotation shaft (350, 444) in a direction parallel to an extension direction of the rotation shaft (350, 444), the rotation restriction unit selectively restricting the rotation of the pillar with respect to the rotation shaft (350, 444), characterized in that the rotation restriction unit comprises: a locking device to prevent the pillar from rotating in a state where the first door is opened to maintain a folded state of the pillar; and an unlocking device to release the locking of the locking device while the first door is closed to spread the pillar through the rotation of the pillar, wherein the locking device prevents the hinge body (355, 450) and the rotation shaft (350, 444) from relatively rotating with each other, and wherein the unlocking device comprises: an operator movably disposed within the pillar to press the rotation shaft (350, 444); and a push part disposed on the holder to press the operator while the first door is closed. a main body having at least one storage compartment; first and second doors to open or close the at least one storage compartment; a pillar rotatably connected to the first door by a hinge (340, 360, 370, 440) to prevent cool air from leaking between the first and second doors; and a holder disposed on the storage compartment to guide rotation of the pillar; a rotation shaft (350, 444) to enable the pillar to rotate; a hinge body (355, 450) coupled to the first door and to which the rotation shaft (350, 444) is connected; and a rotation restriction unit contacting the holder to move the rotation shaft (350, 444) in a direction parallel to an extension direction of the rotation shaft (350, 444), the rotation restriction unit selectively restricting the rotation of the pillar with respect to the rotation shaft (350, 444), characterized in that the rotation restriction unit comprises: a locking device to prevent the pillar from rotating in a state where the first door is opened to maintain a folded state of the pillar; and an unlocking device to release the locking of the locking device while the first door is closed to spread the pillar through the rotation of the pillar, a locking device to prevent the pillar from rotating in a state where the first door is opened to maintain a folded state of the pillar; and an unlocking device to release the locking of the locking device while the first door is closed to spread the pillar through the rotation of the pillar, wherein the locking device prevents the hinge body (355, 450) and the rotation shaft (350, 444) from relatively rotating with each other, and wherein the unlocking device comprises: an operator movably disposed within the pillar to press the rotation shaft (350, 444); and a push part disposed on the holder to press the operator while the first door is closed. an operator movably disposed within the pillar to press the rotation shaft (350, 444); and a push part disposed on the holder to press the operator while the first door is closed.