‘Internal wind’, also called ‘internal wind stirring’, is a unique concept of Chinese medicine. It refers to various syndromes, including cerebrovascular events, cerebral arteriosclerosis, hypertensive brain disease, falling sickness, parkinsonism, which are also called stroke, vertigo, epilepsy, tremble respectively in Chinese medicine. Clinical research shows blood stagnation is the main cause of disease, and formula of blood activating wind extinguishing has good efficacy, which is the proof of the effectiveness for various internal wind syndrome and provide clinical basis for establishment of method of blood activating wind extinguishing.