In Parkinson’s disease, one reason is physiological factors, mainly because the patient in the involuntary joint activities, intra-articular pressure increases, rupture of air bubbles in the joints occur physiological popping. Another cause is pathologic factors, mainly caused by joint lesions, such as osteoarthritis and meniscus injury. 1. Physiological factors: Parkinson’s disease patients will shake involuntarily due to the body, in the process of shaking, due to the local tendon and ligament pulling, resulting in friction between the bones and ligaments, and at the same time the joints are subjected to increased pressure, causing the rupture of the air bubbles in the joint cavity to rattle. 2. Pathological factors: degenerative changes caused by osteoarthritis, meniscus injury, chondromalacia patellae, etc., may appear joint popping symptoms, through imaging can be clearly diagnosed. Parkinson’s patients joint ringing, if accompanied by pain and other discomfort, generally caused by pathological factors; if no special discomfort, may be physiological reasons. It is recommended that the patient should consult the doctor in time and take active treatment.