Medicinal moxibustion is separated from navel, which is characterized by thin skin, high sensitivity and fast absorption. With the help of pure yang heat of moxa fire, it penetrates into the skin to stimulate tissues, so as to achieve the purpose of harmonizing qi and blood and dredging meridians, thus achieving the purpose of preventing diseases and strengthening the body. It has the advantages of being green, natural, simple and effective, and it is a rare green health preserving method in modern times.