Conversion disorder lacks temperamental grounds and is a type of somatoform disorder that includes alteration or loss of physical functions implicated in physical deficit suggestive psychological conflict. There is high incidence of return of conversion disorder and difficulty in producing exact approaches of cure and apparent effects of remedy with symptomatic treatment alone because of its complex clinical symptoms. The approach of Oriental Medicine in treatment of conversion disorder is to apprehend relative symptoms from the syndrome combined with several annexational symptoms centering around sequential symptoms. Thereupon, author made a Ganyanghwapung comprehensive diagnosis was conducted using Oriental Medicine measures by differential diagnostic methods in psychosomatic patients whose cases are diagnosed as conversion disorder. Then, Cheonmagudeungeum Gagambang was prescribed for them and it brought on satisfactory effects from the first or second treatment. There have been many cases reporting the application of Oriental Medicine treatment to conversion disorder to date and outcomes have also been favorable. Results of this study likewise suggest that this Oriental Medicine treatment for conversion disorder is effective.