Tianmoxibustion therapy is to apply stimulating drugs on specific acupoints on a given day according to the calendar. Through the stimulation of the drugs on the acupoints, the meridians are stimulated, the qi and blood are adjusted, and it is helpful to prevent and treat diseases. Tianmoxibustion belongs to the non-fire moxibustion method. It is a traditional health care therapy based on the theory of "harmony between man and nature" in traditional Chinese medicine. It combines two important elements of acupuncture and moxibustion in traditional Chinese medicine. Traditional day moxibustion is mostly carried out during dog days and three-nine days, which are called "dog-day moxibustion" and "three-nine-day moxibustion". Dog days are the time of year when Yang Qi is the most vigorous, and it is the best time to cure winter diseases and summer diseases. Thirty-nine days is the time of the year when the cold is the heaviest. At this time, the cathode yang is born, which can strengthen the therapeutic effect of dog-day moxibustion.