Osteoarthritis of the knee joint is a degenerative disease in which primary or secondary degenerative changes in the articular cartilage are accompanied by subchondral bone growth, resulting in gradual destruction and deformity of the joint and affecting the function of the knee joint. According to Chinese medicine, this disease is caused by chronic strain, cold, trauma or old age, liver and kidney deficiency, and lack of qi and blood. The clinical manifestations are: (a) pain or stiffness in the knee joint, which is obvious when walking and going up and down stairs; (b) restricted movement of the knee joint, swelling, and unstable knee swaying when walking; (c) morning stiffness, where the knee feels stiff, heavy, sluggish and painful when starting to move in the early morning; (d) bone rattling sound when moving the knee joint. Recently, we have achieved very good results in the application of fire acupuncture to treat osteoarthritis of the knee joint. Fire acupuncture is the use of a special material made of needles, the needle on the fire red, and then quickly pierced into the body of certain points and parts of the treatment method. Fire acupuncture has the dual role of needle and moxibustion, both needle stimulation and warm stimulation, warming the Yang to dispel cold, dredging the Qi and blood, in order to achieve a method of curing disease. Fire acupuncture therapy has a long history and was first seen in the Yellow Emperor’s Classic of Internal Medicine, where it was called burnt needle and n-prick. For various reasons, fire acupuncture has been nearly lost. Osteoarthritis of the knee joint is a common disease, yet tricky to treat. We selectively apply fire acupuncture treatment on the basis of traditional acupuncture, which makes the pain relief effect obvious, sometimes can reach that is, the effect of pain relief, and eliminate the swelling effect is good, and achieved satisfactory treatment results. Fire acupuncture treatment has a time-saving feature, treatment only a few minutes, and is every other day treatment, both for modern urban life fast-paced, but also suitable for rural patients who come from far away. Fire acupuncture, the doctor needs to strictly control the fire and need to have a high technical skills, so the patient does not have much pain, and even the more serious patients feel a sense of comfort when the fire acupuncture treatment. Fire acupuncture is one of the acupuncture methods, and it is a highly effective method for pain, numbness, coldness, and swelling caused by paralysis, and it often works wonders.