The present invention provides a refrigerator comprising a cabinet having a storage chamber; an inner case forming the exterior of the storage chamber; a first door pivotally provided to the cabinet and opening and closing one side of the storage chamber; a second door having a pillar rotated so as to come into contact with the first door, pivotally provided to the cabinet, and opening and closing the other side of the storage chamber; and a driving member provided at a lower end of the second door so as to move together with the second door, and operating the pillar so as to fold or unfold the pillar, wherein the pillar has a first catching protrusion and a second catching protrusion, which are selectively caught by the driving member.