PURPOSE: To provide a traveling device capable of freely changing its traveling direction, by driving spherical bodies so that they roll in an optional direction on a flat surface, and as well by enabling a housing to travel in association with the rolling of the spherical bodies in the direction of the rolling.

CONSTITUTION: A base plate 30 integrally incorporated with a housing 29, rotatably carries on its bottom surface spheres 31 through 33 whose outer surfaces are coated with fluoride resin, and is fastened and secureed with support members 34, 35 having cylindrical inner surfaces. Spheres 36, 37 made of stainless steel are fitted in the above-mentioned support members 34, 35, and are made in contact with rubber tires 38 through 41 which are rotated by pulse motors 42 through 45. When the motors are rotated, the spheres 36, 38 are rotated through the rubber tires, thereby the housing 29 may be made travel.