A work car is provided to improve the turning performance of a work car by differentiating the velocity of left and right driving gears. A work car comprises: a first swiveling gear which differentiates the velocity of left and right driving gears and swivels a body; a second swiveling gear which largely differentiates the velocity of left and right driving gears than the first swiveling gear and swivels a body; a swiveling setting unit(78) which sets a first state wherein the first swiveling gear drives or a second state wherein the second swiveling gear drives; a steering operation part(77) which is artificially operated; and a control unit(64). The first swiveling gear is composed of a grand turn mechanism which transfers power in low speed to the right or left driving gear. The second swiveling gear is composed of a brake mechanism which brakes the right or left driving gear.