Power supply boxcar and car body thereof

The invention discloses a power supply boxcar body which is cuboid and comprises a bottom frame, side walls fixed to the bottom frame, end walls fixed to the bottom frame and a car roof fixedly connected with the side walls and the end walls. The two side walls are oppositely arranged, and the two end walls are oppositely arranged; the side walls and the end walls are alternately connected end to end; a door is mounted on the side wall; an electrical equipment mounting seat is fixed on the underframe. In the vehicle body, the electrical equipment mounting seat is fixed on the chassis and can be used for mounting a battery, so that the box wagon applying the vehicle body can be loaded with the battery to form a power supply box wagon to supply power to the locomotive, and the operation of railway vehicles in areas with imperfect railway power grid systems is facilitated. The invention further discloses a power supply boxcar which is loaded with a battery and can supply power to a locomotive, and railway vehicl