A 35-year-old female with inflammatory breast cancer was treated with preoperative intra-arterial infusion chemotherapy. One cycle consisted of cyclophosphamide 700 mg, epirubicin 20 mg and 5-FU 1,750 mg. After 4-cycles of intra-arterial infusion chemotherapy, the size of tumor and regional lymph nodes were remarkably decreased. Histological examinations revealed that almost all the cancer cells had disappeared in the resected specimen. In the patient, preoperative intra-arterial infusion chemotherapy was very effective in local control, which enabled us to perform a histologically curative operation. In conclusion, multimodal treatment including intra-arterial infusion chemotherapy is a promising treatment for inflammatory breast cancer.