Flat vehicle body used for wiring and cable arranging of electrified railway electric vehicles

The utility model discloses a flat vehicle body used for wiring and cable arranging of electrified railway electric vehicles. The flat vehicle body used for wiring and cable arranging of the electrified railway electric vehicles comprises a frame structure and a floor (8), wherein the frame structure is composed of side beams (1), an end beam (2), a middle beam (3), a sleeper beam (4), a large cross beam (5), a small cross beam (6) and longitudinal beams (7), the middle beam is composed of two same-type I beams arranged at intervals left and right, an upper cover plate and a lower cover plate in a welding mode, the two same-type I beams are connected by the upper cover plate and the lower cover plate, the end beam is cold bending unequal angle steel, the side beams are hot rolled steel channels, the left end and the right end of the upper cover plate are extended outwards to be connected with the side beams in a lapping mode, the slipper beam is of a box-type structure with a variable cross section, the large