An improved three-wheeled scooter comprises a front tube (10), an erect tube (11), a handle (12), a front wheel (13), carriers (14), and rear wheels (16). The left and right carriers (14) are mounted and connected behind the front tube (10), and the left and right rear wheels (16) are separately mounted on two sides of the back end of the carriers (14). The front wheel (13) is arranged at the lower end of the erect tube (11), and a front wheel rotational shaft (131) is arranged behind a central line (Y) of the front tube. The handle (12) is arranged at the upper end of the erect tube (11). The front tube (10) is arranged at an angle of inclination of 55° to 70°. The lower end of the erect tube (11) is pivotally arranged behind the front tube (10), and leans upwards at an angle of 75° to 90°. In the three-wheeled scooter, left and right carrier rods (141) are shortened, the front wheel (13) and the two rear wheels (16) are arranged in the shape of an equilateral triangle, and the front wheel (13) can swing in the S shape at a larger angle, thereby improving the sliding speed of the three-wheeled scooter.