Moxibustion generally does not harm the vital energy, but if too many acupuncture points are selected, too much time is taken, or moxibustion is too frequent, etc., it may result in the leakage of fluid, which may lead to the occurrence of damage to the vital energy. In Chinese medicine, Yuan Qi is considered to be the most fundamental and important Qi of the human body, and is the driving force of human life. Moxibustion is a kind of moxibustion with moxa cones or moxa sticks on certain parts of the human body for the purpose of disease prevention and health care. Generally, moxibustion can warm the meridians and collaterals, dispel cold and remove paralysis, and nourish the blood, and usually does not damage the vital energy. However, if too many acupuncture points or too much time or too many times are used, it may cause the patient’s fluid to leak out and the qi to be lost with the fluid, resulting in the patient’s qi being difficult to consolidate, thus causing damage to the vital energy and resulting in the symptoms of qi deficiency. Therefore, if the patient needs to carry out moxibustion, it must be carried out under the operation of a professional physician, do not operate blindly on your own, so as not to cause adverse consequences.