Hypertension belongs to the category of vertigo in Chinese medicine. Vertigo is a common clinical condition, mostly seen in middle-aged and elderly people due to deficiency of qi and blood and kidney essence, resulting in brain marrow emptiness and loss of nourishment of the clear orifices. Or vertigo occurs when liver and yang are hyperactive, phlegm and fire are rebellious, or blood stasis is blocking the orifices and disturbing the clear orifices. The main points of identification are as follows: 1. Identification of internal organs: although the vertigo is located in the clear orifices, it is closely related to the malfunction of liver, spleen and kidney; 2. Identification of deficiency and reality: vertigo is mostly associated with deficiency, but also with phlegm and fire, generally speaking, new diseases are more real, long diseases are more deficient, strong people are more real, weak people are more deficient, vomiting, redness and head swelling are more real, tiredness and weakness and tinnitus like cicada are more deficient. 3. Identify the physique: those with white face and fat face are mostly suffering from qi deficiency and phlegm; those with black face and thin face are mostly suffering from qi deficiency and fire; 4. Mainly identify the symptoms: dizziness is based on liver and kidney yin deficiency and qi and blood deficiency, and wind, fire, phlegm and stasis are the symptoms, which are often clinically divided into hyperactivity of liver and yang, inflammation of liver and fire, phlegm and clouding, stasis and blood obstruction, deficiency of qi and blood, and liver and kidney yin deficiency.