Carriage of rail vehicle

The utility model provides a compartment of a rail vehicle, which belongs to the technical field of rail vehicles and comprises a vehicle body assembly, the vehicle body assembly comprises a built-inside wall plate, an LED wall lamp is arranged in the compartment and installed on the built-in side wall plate, the LED wall lamp comprises an installation bottom plate, a light-transmitting lampshadeand a light-emitting assembly, and the installation bottom plate is fixedly connected with the built-in side wall plate through a fastener. Wherein the light-transmitting lampshade covers the mounting bottom plate and is fixedly connected with the mounting bottom plate, a cuboid box body is defined by the light-transmitting lampshade and the mounting bottom plate, the light-emitting assembly is located in the box body and is fixedly arranged on the mounting bottom plate, and the light-emitting assembly comprises a light-emitting element; the carriage of the rail vehicle is provided with the LED wall lamp, the appearan