The so-called calcification is the hardening ossification of soft tissues, which is a manifestation of cervical spondylosis. Calcification of the cervical spine is considered in several aspects: First, calcification of cervical disc protrusion is common in patients with a long history of cervical spondylosis, with a medical history of more than 5-10 years. Second, calcification and ossification of the posterior longitudinal ligament of the cervical spine can easily lead to cervical spinal stenosis and produce clinical manifestations of spinal cervical spondylosis, such as weakness of the lower limbs, unstable walking, easy to fall, walking like stepping on cotton and other sensations. Calcification of the ligamentum flavum in the spinal canal, like calcification of the posterior longitudinal ligament, is likely to cause cervical spinal stenosis and manifest the clinical symptoms of spinal cord cervical spondylosis. Fourth, calcification of the collateral ligament of the neck is also an imaging pathological change of cervical cervical spondylosis. Consider these four conditions for cervical spine calcification, and if there is cervical spine calcification, it should be treated as cervical spondylosis.