In general, benign fibrous histiocy-toma is rarely found in the head and neck. There has been no such tumor of facial nerve origin in the English literature. One case of benign fibrous histiocy-toma of the facial nerve was experienced in Chi Mei Foundation Hospital in Novem-ber 1992. After having removed the tumor, we performed grafting repair surgery 2 weeks later. The clinical and histological findings of this tumor are presented and discussed.