The present invention relates to an artificial hip joint stem and a stem providing method, and the artificial hip joint stem, which is used to replace the damaged femoral head or acetabulum, comprises: a stem body having a head fixing part, which protrudes from the upper part thereof and fixes a head, an operating space horizontally opened at the upper side thereof, and a head insertion hole vertically penetrated so as to be connected to the operating space； a screw part inserted into the head insertion hole and rotating； an operation converting part inserted into the operating space so as to vertically move by the screw part in a state in which the operation converting part is connected to the screw part； a fixing bracket inserted into the operating space such that the screw part is fixed so as to rotate without changing the depth thereof； a variable operating part inserted into a supporting surface of the stem body so as to adjust a horizontal width by means of operation of the operation converting part； and a movable pin for fixing the variable operating part to the operation converting part.
