Diabetes is a controllable disease, not a curable disease. If Diabetic patients do not regularly monitor themselves, they run risk of diabetic complications that cannot be reversed or treated. Especially, if the patients have high blood suger level, a cardiovascular disease, or poor blood circulation, there immune system will not function, and thus making the patient more susceptible to infection. Eventually, the patient will have to undergo amputation. The case is a report about a Diabetic patient with foot ulcers. The patient was treated by Taeumin Bopyewontang and the foot ulcers were improved.