Insomnia is a temporary or continuous condition in which one has difficulty sleeping, due to physical impediments or physical problems. Because insomnia does harms to a labor power or imposes mental and physical burden on a patient, we should pay attention to this disease. This case is about a patient who was 62 years old man with a chronic insomnia since 1996, inspite of no past history about psychical disease. He had sufferred from a cerebral infarction and hypertension since March. 2002. and was hospitalized in Sangji University korean medicine hospital, 25. June. 2002. This patient had been treated by herb-med, Yanggyuksanhwatang for 4 weeks and showed an improvement. This paper describes the process and contents about the patient was cured.