The utility model relates to a tricycle belongs to vehicle technical field, and its front -axle beam that includes frame chassis, is connected with frame chassis, front -axle beam are installed in theanterior of frame chassis and is staggered with the frame chassis central longitudinal axis line and arrange, still include two rear wheels and a front wheel, the frame chassis below is all arrangedin to two rear wheels, and the front -axle beam below is arranged in to the front wheel, and front wheel and two rear wheels are triangular distribution, and triangle -shaped is on -right angle triangle -shaped. Through changing front wheel and the structural arrangement of rear wheel and front -axle beam and frame chassis's position structure for the driver can avoid the person's of taking visually -handicap effectively when riding, opened the person's of taking the field of vision, simultaneously, making things convenient for the driver and the person of taking to exchange and perhaps nursing the person of taking, in addition, the tricycle's after the change structure is compacter, has reduced occupation space, and the convenience is passed and is deposited.