A battery case for a vehicle includes a tray member (20) of resin, configured to hold batteries (36) and having a plurality of projections (32) formed on a bottom (34) thereof, and a tray reinforcing member arranged so as to face the outer surface of the tray member and having at least one reinforcing member (42) constituted by a metal plate, the reinforcing member being arranged on one side of the tray reinforcing member facing the tray member and raised from the one side of the tray reinforcing member. A recess (56) is formed at least in the outer surface of one of the projections so as to correspond in position to the reinforcing member, and the reinforcing member is received in the recess.
