Objectives : This study it designed to evaluate the effects of an oriental medicine therapy, namely Binsosan-gamibang, on diabetic peripheral polyneuropathy. Methods : The clinical data was analyzed on a patient with diabetic peripheral polyneuropathy due to subyeolongsung(濕熱壅盛), gihyeoloeche(氣血瘀滯) whose main symptoms were pain and numbness in both legs. The patient was admitted at the internal medicine department of Dae-Gu Hanny University Dae-Gu Oriental Medicine Hospital on December 22, 2003, and was treated with herbal medicine(Binsosan-gamibang), acupuncture and physical therapy. Results : After treatment, improvement in pain and numbness in both legs was seen in the subsection of the pain rating score(PRS) and the visual analogue scale(VAS). Conclusions : This study suggests that Binsosan-gamibang is significantly effective in treatment of diabetic peripheral polyneuropathy.