Ankylosing spondylitis belongs to the category of “paralysis” in Chinese medicine, which was called “tortoise back wind”, “bamboo joint wind qi”, “bone paralysis” in ancient times. “In the 1980s, Professor Jiao Shude described the pain in the lumbar, spine, sacral, hip or hip joints as obvious, followed by stiffness and pain in the spine and neck, or numbness and weakness, low fever, aggravated by climate change or exertion, and stiffness of the spine, curvature of the lumbar spine, and inability to straighten the spine in advanced stages as inibular paralysis caused by deficiency of the kidney and deep invasion of cold and dampness. The etiology of ankylosing spondylitis, from the analysis of Chinese medicine theory, the disease can be caused by congenital deficiency of endowment or acquired dysregulation, indiscretion in the room, panic, depression and anger, post-illness disorders, etc., resulting in deficiency of kidney and liver, loss of honor of the Governor, wind, cold and dampness invasion, deep into the bone marrow, spine. The deficiency of essence and blood in the kidney and liver makes the tendons and bones weak and the evil stays, gradually leading to the mutual gelation of phlegm and blood stasis. In short, the disease is mostly due to the deficiency of yang in the body, the deficiency of yin and essence in the kidney and liver, the deficiency of the Governor’s Vessel as the internal cause, and the wind, cold and dampness evil cold and dampness as the external cause, which is the cause and effect of each other.