The invention relates to a self-discharge vehicle, which comprises chassis, compartment connected to the chassis, wherein said compartment comprises main compartment, discharger and discharger driver; the main compartment comprises two side plates, two end plates and floor; the discharger driver along the compartment are fixed to the main compartment and discharger; the discharger is near one side plate and the floor when the compartment is loaded; and the driver can drive the discharger to move transversely along compartment. The invention can discharge transversely, to reduce the cost and simplify structure.