The present invention relates to exercise equipment, and more specifically, to exercise equipment that allows for the adjustment of weight resistance by controlling the elastic force applied to a wire. An exercise apparatus according to the present invention comprising a case having an internal space; an elastic module installed within the internal space and providing elastic force to a wire drawn out outside the case; and an adjustment module installed on one side of the elastic module to adjust the elastic force applied to the wire: wherein the elastic module comprises: a wire roller on which the wire is wound; a rotating shaft integrally rotating with the wire roller; a spring gear rotatably installed on the rotating shaft; and a spiral spring installed inside the spring gear to provide elastic force to the wire, wherein the spring gear comprises: a gear body open on one side to accommodate the spiral spring; a cover connected to the open side of the gear body, with radial protrusions formed on its inner surface in contact with the spiral spring; and a spring retainer securing the inner end of the spiral spring and fixed to the rotating shaft.