A sensor setup structure includes a pair of front side frames that are provided on vehicle widthwise opposite sides of a vehicle front part, and extended along a vehicle lengthwise direction, a pair of upper members that are provided to the vehicle widthwise outsides from these front side frames, and extended from respective front pillars on vehicle widthwise opposite sides downwards to the front, a joining frame that joins in the vehicle widthwise direction between the vicinity of front ends of these upper members and the front side frames on the same sides in the vehicle widthwise direction, and satellite sensors of an airbag apparatus which, in plan view, are setup in positions that are to the vehicle widthwise insides from vehicle widthwise outer surfaces of the respective upper members, and are to the vehicle widthwise outsides from vehicle widthwise outer surfaces of the respective front side frames.