To improve the exterior appearance of a tractor by firmly mounting a fender and concealing a fender fixing part in the tractor mounting the fender to a safety frame.

In the tractor, a safety frame 11 is vertically provided at the rear part of a traveling machine body 1, and the fender 10 is disposed at the outside of the safety frame 11. The safety frame 11 is composed of a right and left lower part frames 12 vertically provided at the rear part of the traveling machine body 1 and a U shape type upper frame 13 mounted to a top part 12a of the right and left lower part frame 12. A reinforcing plate 12d is provided between a base part 12c of the lower part frame 12 an the top part 12a extending from the upper end of the base part 12c toward the outside, and the fender 10 is mounted to the reinforcing plate 12d (a fender mounting member 12e).