VEHICLE FLOOR STRUCTURE

A floor structure has a floor panel, a battery pack, and floor cross members. The battery pack is disposed under the floor panel. The floor cross members are disposed on the floor panel and extend from one end to the other end of the floor panel in the vehicle width direction. The floor cross members include deformation starting portions in which bases are raised. Dimensions in a vehicle height direction of the deformation starting portions are shorter than dimensions of areas of the floor cross members in a vehicle width direction other than the deformation starting portion.