Cervical spondylosis is not a category of occupational disease, because cervical spondylosis can be caused by many reasons, the simplest of which is prolonged head down can appear cervical spondylosis, such as head down playing cell phones. Occupational diseases only occur in a particular work environment, such as coal mine or brick factory workers, because the air pollution is very serious, breathing too much is prone to silicosis, pneumoconiosis and other occupational diseases. Therefore, it is important to distinguish between the concept of occupational diseases and diseases caused by strain and strain over time. Cervical spondylosis is easily caused by the nature of work such as working in front of a computer and sitting and driving for a long time. But only attributed to the formation of strain because of the accumulation of months and months, and not because of the special environment will lead to cervical spondylosis, these are two different concepts. And this environment is well maintained, and even cervical spondylosis can be avoided, while occupational diseases in time to do a good job of maintenance is also very difficult to 100% avoid.