In the long term clinical practice in the treatment of hypertension, traditional Chinese medicine is increasingly received attention and application because of its antihypertensive effect with the advantage of lasting stable, improving symptoms and blood vessel function, and protecting target organ. The huanglianjiedu decoction is used to relieve internal heat. It can purge fire and remove toxic substance. But now we use it to make some changes to treat hypertension (the type of phlegm and blood-stasis and heat toxin). The modified huanglianjiedu decoction consisting of 5 g huanglian, 5 g huangqin, 5 g huangbai, 5 g zhizi, 10 g zexie, 10 g puhuang, 10 g danshen, 5 g chuanxiong, 10 g chishao, 10 g taoren, 5 g honghua, 15 g fuling. Some of these drugs can dilate blood vessels, lower blood pressure, clear damp, expel phlegm and invigorate the circulation of bood. In one word, the formula can purge fire and remove toxic substance, expel phlegm and invigorate the circulation of blood.