The invention discloses a rail vehicle. The rail vehicle comprises a bogie and a vehicle body. The bogie is provided with a rail concave part suitable for straddling on a rail. The vehicle body is connected with the bogie and pulled by the bogie to travel along the rail. The vehicle body comprises a plurality of carriages which are sequentially hinged in the length direction of the rail. According to the rail vehicle, escape way structure optimizing is facilitated, cost is conveniently reduced, the occupied space and borne weight of the rail are reduced, and stability is improved.