We report a rare case of mucoepidermoid carcinoma arising from a minor salivary gland in the lower lip. Mucoepidermoid carcinoma is a salivary gland neoplasm that is characterized by varying combinations of mucous, epidermoid, and intermediate cells. As for the minor salivary glands, the palate is the most common site for the development of this tumor. A 60-year-old woman presented at our clinic on February 8, 1994 because of a mass in the lower lip. There was a well-circumscribed swelling, measuring 18mm in diameter, in the lower lip. It was elastic soft and movable on palpation. Histopathological diagnosis of a mucoepidermoid carcinoma was made on examination of a biopsy specimen. With the patient under general anesthesia, the tumor was excised with a 5-mm safety margin on March 3, 1994. Histopathological examination of the surgical specimen showed a well-differentiated mucoepidermoid carcinoma. After surgery, the patient had a fairly good prognosis with no evidence of local recurrence or distant metastasis.