${ulcorner}Volume;1{lrcorner}$ of ${ulcorner}$Medical Records as a Guide to Clinical Works${lrcorner}$, written by Ye Tian Shi, showed some clinical cases of dizziness. In this study, his diagnosis and treatment was studied with 16 clinical cases of dizziness with pathogenic factor, pathogenesis and symptoms of dizziness. Ye Tian Shi thought that phlegm, fire, wind and insufficiency were the causes of dizziness and phlegm-fire, phlegm-fire-wind, wind-phlegm and insufficiencyfire-wind were the causes of dizziness, clinically. Dizziness is caused when the body is in condition of excess in the upper and deciency in the lower. The acompanying clinical symptoms of dizziness are endogenous wind, fire of deficiency type, phlegm wind and phelegm fire. For the treatment of dizziness, Ye Tian Shi used the combination of medicines with some modifications by the cases for phlegm, fire, wind and insufficiency. He also encouraged the mental therapy for the treatment of dizziness. He emphasized the early treatment of dizziness to prevent hemiplegia after apoplexy. It can be postulated from Volume 1 of ${ulcorner}$Medical Records as a Guide to Clinical Works${lrcorner}$, diagnosis and treatment of symptoms and illness of Ye Tian Shi was strictly based on actual clinical cases.