VEHICLE SEAT

To improve workability when attaching an airbag module disposed in a side portion of a vehicle seat from a seat back side. A vehicle seat(S) includes: a side frame () which constitutes a side portion of a seat back frame (); a bracket () which includes an attachment portion () attached to a side surface of the side frame () on a seat inner side and a back protrusion portion () protruding backward from the attachment portion (); and an airbag module () which includes a retainer () fixed to the back protrusion portion ().