The utility model belongs to a hand truck among agricultural transport machines. The hand truck comprises a frame, supporting legs, a left armrest, a right armrest, and three wheels equipped on a surface vertical to a symmetrical axle of the truck body. Two wheels are main wheels and one wheel is a transition wheel equipped at a front end. When the truck operates on a normal surface, the transition wheel does not work. But in case of a gully, the directional wheel will work with a rear wheel and a middle wheel to enable the middle wheel and the rear wheel to get across the gully smoothly and steadily. Thus, the truck is characterized in that the truck is capable of moving on a path or a low farmland bank with gullies smoothly and steadily and is provided with strong applicability and a wide applicable scope for road surfaces, which overcomes a defect that a traditional wheelbarrow fails to move on a path with gullies.