Motor vehicle door with an integrated side impact protection device

The invention relates to a motor vehicle door with an integrated side impact protection device for a vehicle occupant with an airbag device (20), in particular a Headbageinrichtung which is accommodated in the region of the upper edge of the door (1) and an upwardly extending shot sleeve (24). In order to provide a motor vehicle door, comprising a Kraftleitpfad in the top of the door between the A-pillar and the B-pillar of a motor vehicle in the installed state, the door (1) in the region of its upper edge with a gradient extending in the vehicle longitudinal direction, in cross section ggeschlossenen curb stiffening hollow profile (10) equipped, the inside of which is adapted to the airbag device (20).