PROBLEM TO BE SOLVED: To provide a work vehicle which allows an operator to confirm which work machine is being interlocked with the work vehicle and to set which working machine is to be interlocked with the work vehicle on the work vehicle side.SOLUTION: A tractor (work vehicle) 1, to which work machines can be attached, includes a liquid crystal panel 21 which displays work machines which are attached to and can be interlocked with the tractor so as to be selectable and displays work machines which are being interlocked with the tractor so as to be distinguishable; an operation part (an encoder dial 22, an enter button 23, and command buttons 24-28) for performing the operation of selecting and determining the work machines displayed on the liquid crystal panel 21; and a control device 3 which, when desired work machines are determined by the determination operation in the operation part, performs control to change the interlocked work machines into non-interlocked work machines and interlock the work machines which are determined by the determination operation with the tractor.SELECTED DRAWING: Figure 11