A vehicle lower structure including: a drive source having an internal combustion engine and an electric drive motor ; a floor panel forming a floor surface of a cabin; and a propeller shaft extending in a vehicle longitudinal direction at a position under the floor panel to transmit power from the drive source to at least one drive wheel , the vehicle lower structure comprising: a battery pack having a first battery unit , a second battery unit , and a battery cover , at positions under the floor panel , the first battery unit and the second battery unit being arranged separately from each other on both sides in a vehicle width direction of the propeller shaft and storing electricity to be supplied to the electric drive motor ; wherein the battery cover has: a first battery accommodation section accommodating the first battery unit ; a second battery accommodation section accommodating the second battery unit ; and a coupling section that couples the first battery accommodation section and the second battery accommodation section , and the coupling section couples the first battery accommodation section and the second battery accommodation section such that it extends in the vehicle width direction at a position above the propeller shaft , characterized in that the vehicle lower structure further comprises a fuel tank arranged at a position under the floor panel and on a vehicle rear side of the first battery unit and the second battery unit in a manner to be higher than the first battery unit and the second battery unit , and a tank attachment member to which a fixture belt for fixing the fuel tank is attached, wherein the coupling section is arranged next to a vehicle front side of the fuel tank and includes a concave section on an upper side of the coupling section , the concave section being dented substantially downward, and the tank attachment member is arranged at least partly in the concave section . a battery pack having a first battery unit , a second battery unit , and a battery cover , at positions under the floor panel , the first battery unit and the second battery unit being arranged separately from each other on both sides in a vehicle width direction of the propeller shaft and storing electricity to be supplied to the electric drive motor ; wherein the battery cover has: a first battery accommodation section accommodating the first battery unit ; a second battery accommodation section accommodating the second battery unit ; and a coupling section that couples the first battery accommodation section and the second battery accommodation section , and a first battery accommodation section accommodating the first battery unit ; a second battery accommodation section accommodating the second battery unit ; and a coupling section that couples the first battery accommodation section and the second battery accommodation section , and the coupling section couples the first battery accommodation section and the second battery accommodation section such that it extends in the vehicle width direction at a position above the propeller shaft , characterized in that the vehicle lower structure further comprises a fuel tank arranged at a position under the floor panel and on a vehicle rear side of the first battery unit and the second battery unit in a manner to be higher than the first battery unit and the second battery unit , and a tank attachment member to which a fixture belt for fixing the fuel tank is attached, wherein the coupling section is arranged next to a vehicle front side of the fuel tank and includes a concave section on an upper side of the coupling section , the concave section being dented substantially downward, and the tank attachment member is arranged at least partly in the concave section . <EOS>