angle adjustment apparatus for prop of stair handrail pole

The present invention relates to an apparatus for adjusting the angle of a pole of a stair handrail, which is provided to securely combine a vertical pole with a horizontal pole of the stair handrail, and adjust the horizontal angle around the vertical pole at various angles. Accordingly, the apparatus comprises: a pair of plate-shaped vertical poles having multiple through holes thereon; a horizontal post combined between the vertical poles; an upper fixation bar detachably combined with the upper part of the vertical pole; a lower fixation bar detachably combined with the lower part of the vertical pole, and coupled to the upper surface of stairs; a coupling plate installed on both sides of each vertical pole and having a bolt coupling hole thereon; and a rotational ball member including a pole insertion hole which has the horizontal pole inserted therein to adjust the angle of the horizontal pole around the vertical pole, wherein the horizontal pole is installed between the vertical poles to be able to rotate, and an insertion coupling hole which has the end of a bolt, coupled to the coupling plate, inserted and coupled thereto.