We report here a rare case of low-grade adenocarcinoma at the posterior edge of nasal septum. A 22-year-old male was referred to our hospital with nasal obstruction. Local findings, CT scan, and MR images revealed a tumor 1cm diameter at the posterior edge of nasal septum. The tumor was completely excised by transpalatal approach under general anesthesia on June 19, 1998. A histopathological examinaton confirmed low-grade adenocarcinoma. He has been free from recurrence of the tumor for two years and half after surgery.