The present invention provides a combine harvester which is provided with an engine hood (21) and a driver seat (51) supported by the engine hood at the driving part (50). In the combine harvester the engine hood (21) and the driver seat (51) is composed can be switched to a closed state that the engine hood (21) covers the engine (28) and an open state that the engine hood (21) opens the engine (28) around the opening and closing axes (X) exposed along the up-and-down direction, the opening and closing axes (X) is arranged nearer to the back in the front-and-back direction of the machine body comparing with the engine (28), and is arranged nearer to the inner side in the transverse direction of the machine body comparing with the exterior side (28b) of the engine (28).