A vehicle lower portion structure has a floor panel, rockers, a floor tunnel, and beads. The floor panel forms a floor portion of the vehicle. The pair of rockers are disposed respectively on both outer sides in the vehicle transverse direction of the floor panel, and extend in the vehicle longitudinal direction. The floor tunnel is disposed in a central portion in the vehicle transverse direction of the floor panel, and extends in the vehicle longitudinal direction. The beads are formed protruding towards the vehicle upward side on the floor panel between the rockers and the floor tunnel such that ridgelines thereof extend in the vehicle longitudinal direction.