A work vehicle includes an assist motor that is located opposite an engine with respect to a continuously variable transmission device. The assist motor has an output shaft that extends coaxially with a drive shaft of the continuously variable transmission device and is interlocked with the drive shaft. A motor support platform that supports the assist motor protrudes more outward than the continuously variable transmission device does in a lateral direction relative to a vehicle body. The motor support platform includes a slide movement mechanism, and the slide movement mechanism is configured to change the position at which the assist motor is attached, relative to the continuously variable transmission device, axially of the drive shaft, between a connected position and a disconnected position of the drive shaft and the output shaft.