In Chinese medicine, as long as there are some drugs that have the effect of calming the liver and submerging the yang, they can be used to make water to drink and play a role in lowering blood pressure, such as chrysanthemum tea, cassia seeds, cornus, rooibos leaves, hawthorn, lotus leaves, etc. The rooibos tea leaves can enhance the flexibility and elasticity of blood vessels, reduce serum cholesterol and prevent fat deposition in blood vessels. Tannic acid in tea can inhibit blood pressure, hypertensive effect on patients with hypertension. Buckwheat tea contains rutin can soften blood vessels, with lowering blood lipids, lowering blood sugar, lowering blood pressure, weight loss and other effects. These teas can be taken in combination with oral antihypertensive drugs, can not be taken alone as a substitute for oral antihypertensive drugs.