Chinese medicine classifies headache into external headache and internal headache according to the cause. External headache is usually caused by wind-cold, wind-heat or wind-damp evil qi, and the veins and channels in the head are obstructed, which causes pain if they do not pass; internal headache can be caused by deficiency of qi, blood, yin and yang, loss of nourishment of veins and channels, or blood stasis, cold condensation, phlegm and turbidity blocking the meridians. The head is considered to be the place where the body’s yang energy gathers, and is called the meeting of all yang and the internal organs of the clear yang. In the Ming dynasty, Wang Kentang’s “The standard of treatment” mentions that “the head is like the sky, where the qi of the three yang and six bowels of the clear yang will be; the blood of the three yin and five Tibetan essences is also injected here.” Different parts of the head belong to different meridians, so Chinese medicine divides headache into Sun, Yangming, Shaoyang, or Taiyin, Conjunctive Yin, Shaoyin headache, or full headache. In the Sun meridian, the headache is caused by wind-cold attack and pain in the back of the head, which can be connected to the back of the neck; in the Yangming meridian, the headache is caused by accumulated heat in the stomach and intestines, with pain in the forehead and eyebrow bones; in the Shaoyang meridian, the headache is caused by heat in the biliary organs and is migraine; in the Taiyin meridian, the headache is caused by spleen deficiency and dampness, and the headache is heavy; in the Convulsive Yin meridian, the headache is caused by pain in the top of the head, which is blamed on the Convulsive Yin Liver meridian; and in the Shaoyin headache, the headache is caused by deficiency in the heart and kidney. Headaches caused by deficiency of qi and blood, phlegm and blood stagnation, and deficiency of liver, spleen and kidney can be manifested as pain in the whole head. In the treatment of headache in TCM, it is necessary to examine the symptoms and seek the causes, and on the basis of clearly identifying external and internal injuries and the causes of deficiency, further subdivide the headache categories through meridian identification and formulate individual treatment plans. For example, for sun headache, Qiang Wu and Ligusticum can be added to the general prescription for headache; for Yang Ming headache, Angelica dahurica and Manchuria dahurica can be added; for Shao Yang headache, Chai Hu and Chuanxiong can be added; for Shao Yin headache, Dou Wu and Hosin can be added.