A vehicle seat is configured in such a way that webbing of a strip shape more difficult to elongate than a seat cover is provided around an airbag at a back side of the seat cover, and a bulging portion is caused to crack by means of tension of the webbing accompanying inflation of the airbag, wherein a hanging member more difficult to elongate than the seat cover is provided on a part of the seat cover, a pleat portion that is a part of the seat cover and to which the hanging member is mounted, is pulled towards an inside of the seat, the hanging member is locked to a locking member at the seat pad side, one end side of the webbing is mounted at the bulging portion side, and the other end side of the webbing is mounted to the hanging member or the locking member in a position closer to the inside of the seat than the pleat portion.