A vehicle lower structure including: a drive source having 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 arranged under the floor panel and having: a first battery unit and a second battery unit that are separately arranged 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; and a battery cover, 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 extends in the vehicle width direction, the coupling section including a fragile section between the first battery accommodation section and the second battery accommodation section in the vehicle width direction, the fragile section being fragile with respect to an impact load that is applied to the battery pack from an outer side in the vehicle width direction, characterized in that the fragile section is formed such that a length thereof in a vertical direction is shorter than the rest of portions of the coupling section other than the fragile section, and a battery control unit and a junction box are arranged on both sides in the vehicle width direction of the fragile section in the coupling section. a battery pack arranged under the floor panel and having: a first battery unit and a second battery unit that are separately arranged 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; and a battery cover, 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 extends in the vehicle width direction, the coupling section including a fragile section between the first battery accommodation section and the second battery accommodation section in the vehicle width direction, the fragile section being fragile with respect to an impact load that is applied to the battery pack from an outer side in the vehicle width direction, 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 extends in the vehicle width direction, the coupling section including a fragile section between the first battery accommodation section and the second battery accommodation section in the vehicle width direction, the fragile section being fragile with respect to an impact load that is applied to the battery pack from an outer side in the vehicle width direction, characterized in that the fragile section is formed such that a length thereof in a vertical direction is shorter than the rest of portions of the coupling section other than the fragile section, and a battery control unit and a junction box are arranged on both sides in the vehicle width direction of the fragile section in the coupling section.