WORK MACHINE

There is configured a work machine whose engine and fuel tank will not be damaged at time of a work even when the engine and the fuel tank are arranged with offset to one side in the left/right direction of the machine body. The work machine includes a machine body A that can travel with left and right front wheels 1 and left and right rear wheels 2 and an implement supported to the machine body A. An engine 3 driving the front wheels 1, the rear wheels 2 and the implement and a fuel tank 4 are disposed between the front wheels 1 and the rear wheels 2 in a front/rear direction of the machine body A and at positions offset to further outer side than the left/right center of the machine body A. There is provided a protection member 30 which protrudes to a further outer side than an outer end position of the fuel tank 4 in an offset direction of the fuel tank 4.