A technical object of the invention is to provide a work vehicle (1) which can meet cost reduction request while achieving improvement of rigidity of a cabin frame (300). The work vehicle (1) of the invention is provided with a cabin (7) which covers a control seat (8) on a travel machine body (2). The cabin (7) has a cabin frame (300) which constructs a framework. At least one frame member (304, 305) of the cabin frame (300) is formed into a C-shaped cross section. A reinforcing plate (304a, 305a) extending along a longitudinal direction of the frame member (304, 305) is fixed by welding to an opening portion of the frame member (304, 305). At least longitudinally intermediate portion of the frame member (304, 305) is formed into a hollow shape.
