The invention provides a ligament stretcher and relates to a bodybuilding facility for stretching the leg ligaments. The ligament stretcher is composed of foot supports, a track frame, a base, idler wheels, a backrest, a hand-cranking wheel, leg placing plates, sliding strips, shank fixing bands, a cable, pulleys A, a pulley B, a hip fixing band and a hand-cranking lifter. The rear ligaments of the legs can be stretched at the same time, the hip side ligaments can be stretched at the same time, the neck is lifted up, and a patient with the cervical spondylosis can be treated physically.