Step exercise apparatus, sub-board including a plurality of LED arranged in a matrix form according to the present invention; The sub-formed on the substrate, a first circuit board including the first direction side by side extend a plurality of first wires to; Wherein the plurality of second wires on the bottom is provided on the first circuit board, is formed, and a second circuit board a plurality of the third wiring is formed on the upper surface, the second wire is separated from the one of the plurality first wire 2 and side by side extending in the direction, the third wiring is a second circuit board extending in parallel in a third direction; The second circuit board is provided on, a plurality of fourth wirings being formed on the bottom, the fourth wire is a third circuit board is spaced apart from the plurality of third wirings extending in parallel to the fourth direction; A first resilient pad comprising a plurality of first cross-through hole to be interposed between the first wiring board and the second circuit board, open to the first wiring and the plurality of intersecting regions of the second wiring intersect; A second resilient pad comprising a plurality of second through holes crossing is interposed between the second wiring and the third wiring board, open the third wiring and the plurality of intersecting regions and the fourth wiring are crossed; And a control module for guiding the user in the step by controlling the plurality of LED.