VEHICLE REAR SIDE AIRBAG DEVICE FIXING STRUCTURE

A fixing structure of a rear side airbag device for a vehicle that may assure a margin of time for the side airbag to be deployed. In a vehicle rear side airbag device fixing structure (10), an airbag module (38) is fixed by fastening to a child seat fixing member (18) conforming to ISOFix standards, via a metal plate (54). The child seat fixing member (18) is fixed to the rear floor of a vehicle body at the downward side of a rear seatback (16). Therefore, in comparison with a structure in which an airbag module is fixed to a rear wheel housing via a bracket, the airbag module (38) may be disposed to the vehicle width direction inner side. Moreover, the child seat fixing member (18) exhibits a high rigidness with respect to a side collision of the vehicle. Therefore, fixing portions of the airbag module (38) are resistant to being deformed during a side collision of the vehicle.