The objective of the present invention is to provide a work vehicle in which an operator can, on the work vehicle side, confirm which working machine is engaged and set which working machine to engage. To this end, a tractor (1), to which a working machine can be mounted, is provided with: a liquid crystal panel (21) that selectably displays an engageable working machine having been mounted and displays the currently engaged working machine so as to be identifiable an operation unit (encoder dial (22), enter button (23), and command buttons (24-28)) for carrying out selection and determination operations for the working machine displayed on the liquid crystal panel (21) and a control device (3) that, when a determination operation is carried out by the operation unit for a desired working machine, disengages the currently engaged working machine, and configures the working machine for which the determination operation has been carried out to be engaged.
