After this study: I report the following result from it. 1. Beriberi is defined as sensory or motor disorder of leg with a painful-swelling and pyrexia. If it progress severely, the disease transmits to heart and cause numbness of the lower abdomen, vomiting, anorexia, palpitation, chest distress and confusion. 2. The external etiologic factors of Beriberi are wind-toxic pathogen, dampness, improper diet and climate sickness, the internal etiologic factors are deficiencies of the kidney, both Gi and blood and original vital energy. 3. The treatment of Beriberi is free-going of blockage, because it is a blocked disease. 4. Danggwiy-juntongtang and Ganghwar-dochetang is the most in the order of frequency of use. Mahwang-juagyongtang, Banha-juagyongtang, Daehwang-juagyongtang, Shinbi-juagyongtang are used in sequence. 5. The prescriptions of Beriberi are made up of the herbs that clear heat, for example, Ganghwar, Changchul, Mahwang and Bangpung, and the herbs that reinforces Gi, for example, Insam and Bakchul.