Ankylosing spondylitis (AS) is a chronic inflammatory disease that mainly affects the sacroiliac joints, spinal prominences, paraspinal soft tissues and peripheral joints, and may be accompanied by extra-articular manifestations. The main clinical manifestations are back, back, neck, hip and hip pain, as well as joint swelling and pain, and in severe cases, spinal deformity and joint ankylosis may occur. Although the name “ankylosing spondylitis” does not exist in Chinese medicine, there are many descriptions of the characteristics of the disease, such as the “Nei Jing”, “the tail of the spine is replaced by the heel, and the spine is replaced by the head”, as well as in many medical literature, such as “back and spine ankylosis The disease is described in the Nei Jing as “the tail is replaced by the heel and the spine is replaced by the head”, as well as in numerous medical texts such as “dorsal spine straightening”. Chinese medicine believes that the main cause of the disease is the lack of kidney yang, cold and damp stagnation, and blood stagnation of phlegm over time. Fire therapy is a new expression of moxibustion therapy. The method uses the principle of the meridian heat effect of moxibustion therapy and integrates the patching method of Chinese medicine, i.e. the medicinal qi penetrates the whole body through the acupuncture points among the meridians. When burning, the medicine applied along the meridians can enter the body through the breathing effect of the skin, thus improving local blood circulation, unblocking the meridians, regulating the balance of yin and yang, supporting the immune function of various tissues and cells of the body, in order to achieve the purpose of disease prevention and treatment, and strengthening the body. The Governor Vessel is the main body of Yang, and is the sea of Yang Vessel, which has the function of unifying Yang energy and unifying true energy. This method takes the infusion points of the Directing Vessel, the pinched spine points and the acupuncture points of the lumbar bladder meridian and the A-Yi points to treat lumbar pain, together with the external application of Chinese herbs, so that the yang energy can penetrate and the qi and blood can penetrate, thus playing a good analgesic effect. The formula includes tonic bone fat, which tonifies the kidney and helps Yang, strengthens tendons and bones, and mainly treats kidney deficiency and cold pain; wei ling xian, which dispels phoenix and dampness, stops pain and disperses fetishes, and mainly treats rheumatism and paralysis and numbness of the limbs; yanhu soxo, which dispels wind and disperses cold, opens the channels and stops pain, and is good at treating rheumatism and paralysis; mulberry branch, which dispels cold and leads the medicine to the lining.