A body floor structure (1) for a motor vehicle having a traction battery (2) includes a first longitudinal member (3) and a second longitudinal member (4) that extend in a vehicle longitudinal direction. A floor panel (5) spans between the two longitudinal members (3, 4). A central tunnel (6, 6′) extends in the vehicle longitudinal direction and has a cavity (60, 60′) and is configured for receiving equipment components of the motor vehicle. The traction battery (2) is arranged on a lower side of the body floor structure (1), and the cavity (60, 60′) of the central tunnel (6, 6′) is designed to be open in the direction of a vehicle interior (7).