1. The effect of exercise therapy on cervical spondylosis is mainly to do medical gymnastics. There are two main purposes and functions of medical gymnastics for cervical spondylosis: (1) activating blood circulation in the neck, eliminating congestion and edema, stretching cervical ligaments and relaxing spasmodic muscles at the same time, thus relieving symptoms; (2) Strengthen the neck muscles, enhance their fatigue tolerance and improve the stability of the cervical spine, thus consolidating the therapeutic effect and preventing recurrence. 2. Indications and contraindications When the symptoms of various cervical spondylosis are basically relieved or in a chronic state, medical gymnastics can be started to promote the further elimination of symptoms and consolidate the curative effect. When the symptoms are acute, it is necessary to rest locally, and it is not appropriate to increase exercise stimulation. Exercise should be prohibited when there are obvious or progressive symptoms of spinal cord compression, especially when the cervical vertebra moves backward. When cervical spondylosis of vertebral artery type occurs, the neck rotation should be gentle and slow, and the amplitude should be properly controlled.