Objectives : The purpose of this study is to give account of effects of the Korean herbal medicine therapy which is based on the Sasang constitutional medicine for the patient who has suffered from scale of back caused by psoriasis. Method : Psoriasis patient was diagnosed Soeumin based on his nature and emotion, physical characteristics, symptoms. He was medicated Soeumin Goepungsan. Results and Conclusions : Psoriasis patient who was treated with Soeumin Goepoong-san showed improvement in Psoriasis symptom and general condition. This case study describes the effectiveness on psoriasis symptom by using Soeumin Goepoong-san.