Provided is a work vehicle equipped with: an electrical storage device (11); inverter devices (7, 10); a converter device (12) for converting the voltage of the circuit to which the inverter devices (7, 10) are connected; a generator motor (6) for driving a hydraulic pump (4) with alternating current from the inverter device (7); a motor (9) for driving wheels (61) with alternating current from the inverter device (10); and a control device (200) for controlling the inverter devices (7, 10). In the control device (200), when a malfunction has occurred in a device necessary for supplying current to the motor (9), another process that corresponds to the process that prior to the malfunction was being executed by the device in which the malfunction occurred is executed by another normal device to drive the motor (9). Traveling movement can therefore continue even when a malfunction has occurred in part of the travel power supply system.