Moxibustion has the function of dispelling dampness, moxa leaves are a kind of dry and strong nature of traditional Chinese medicine, moxa leaves are kneaded into moxa velvet and then smoked on the acupuncture points of the human body, which can warm Yang and promote blood circulation, and in the process can metabolize the dampness in the body out. Because the water dampness in the human body after entering the body, it is necessary through the Yang Qi steam and gasification to get the normal transmission, Yang Qi is mainly kidney Yang. If the kidney Yang is not enough in the case of gasification failure, water will be stagnant in the human body to form water dampness. Moxibustion has a very good effect of warming the kidney yang, and by moxibustion of some acupuncture points in the body, usually mainly the Ren, Du and Kidney meridians, the kidney yang can be replenished and better play the role of qi-transformation to move water. Therefore, patients with internal water-dampness can choose moxibustion therapy appropriately, but the technique, acupuncture points and time of moxibustion should follow the doctor’s advice.