The causes of cervical spondylosis are mainly related to the characteristics of the anatomical structure and physiological function of the cervical spine and the soft tissues surrounding the cervical spine, and the degenerative changes of the cervical vertebrae and peri-vertebral tissues due to long-term chronic strain on the neck. Degenerative changes of these tissues lead to the adjacent nerve roots, spinal cord, vertebral artery or sympathetic nerve being squeezed or stimulated, resulting in a series of clinical symptoms, called cervical spondylosis. Small needle knife therapy mainly adjusts and treats the imbalance of the biomechanics of the cervical spine, which is the external cause of its pathogenesis. By using the special structural design and treatment techniques of the small acupuncture knife, various adhesions between the muscles, ligaments and fascia are peeled off and unblocked, so that the muscles, ligaments and fascia can be loosened and repaired, the symptoms of restricted activities can be relieved or alleviated, the dynamic balance of the cervical spine can be restored, and the degeneration of the cervical intervertebral disc can be stopped and slowed down. In conclusion, the application of small needle knife to cervical spondylosis is mainly aimed at soft tissue injury of the spine and at the imbalance of exogenous dynamics due to the occurrence of cervical spondylosis.