The invention discloses a sports apparatus lifting, positioning and locking mechanism. The mechanism comprises a mounting base, a thread groove, a thread sleeve, a tightening screw, a tightening joint, a slide column, a locking pin, a through hole, a main shaft, a bearing base, a hand wheel, a frame, a small belt wheel, a synchronous belt, a large belt wheel, a lifting lead screw, a lifting table,a lifting sleeve, a locking piece, an opening, a clamping block and a clamping port. The mechanism is compact in structure, convenient to use, simple in structure and low in cost; a large synchronousbelt wheel is directly mounted on the lifting lead screw; such dozens of parts as two pairs of bevel gears and shafts are reduced; and the mechanism is convenient to assemble, high in precision, excellent in process, high in positioning precision, wide in application range and low in manufacturing cost, can conveniently position and lock a sports apparatus lifting platform, stably performs lifting, achieves excellent economical benefit and social benefit, and is suitable for popularization and application.