Work Vehicle

A self-driving work vehicle, including: a traveling apparatus; a vehicle body supported by the traveling apparatus on ground; a variable traveling power supply apparatus configured to supply rotational drive power to the traveling apparatus; a travel operation interface configured to adjust a rate of the rotational drive power; a parking brake provided for a transmission shaft of the variable traveling power supply apparatus; a rotation detector configured to detect rotation of the traveling apparatus or the transmission shaft; and a controller configured or programmed to: control the parking brake to a braking state or a non-braking state by a parking brake control module; manage the braking state or the non-braking state as a vehicle body state by a condition management module, the braking state and the non-braking state being operating states of the parking brake.