This work vehicle comprises an engine, an idle-stop execution unit, a determination unit, a count unit, and an idling time adjustment unit. The engine can run in a first idling state in which the engine runs at a prescribed engine speed and a second idling state in which the engine runs at a speed higher than the prescribed engine speed. The idle-stop execution unit executes idle-stop operations to stop the engine when the first idling state or the second idling state continues for a prescribed time. The determination unit determines, on the basis of rotation information pertaining to the engine speed, whether stopping by the idle-stop operations was from the second idling state. The count unit counts the number of engine stops from the second idling state on the basis of the determination results of the determination unit. An idle-stop time adjustment unit increases, from the current time, the prescribed time for the second idling state, which is the execution condition for idle-stop operations, when the number of engine stops that are counted by the count unit is greater than or equal to the prescribed count.