Abstract: A dirt removing running board for automobile includes a cover, a linkage means, a base frame and two steel wires winding to a motor. The linkage means has an upper bar which has a hollow lower portion for housing the upper portion of a lower bar. There is a spring housed in the hollow portion between the upper and lower bars. The lower bar is thus movable up or down to suit different road conditions. The cover is screwed to the chassis of the automobile. The two ends of the linkage means pivotly engage with the cover and base frame respectively to form a substantially Z-shape structure. The motor can release the steel wires to extend the linkage means perpendicular to the cover and the base frame when in use. When the motor rotates in the opposite direction, the steel wires will pull and fold the linkage means and the base frame to the cover for storage.