Glomus Jugulare tumor was first reported by Rosenwasser in 1945. It is known to be the most common tumor involving the middle ear cleft and second most common tumor of termporal bone following schwannoma. The authors recently experienced a case of glomus tumor confined to the middle ear cavity. The 36 year old female patient complained of pulsatile tinnitus and conductive hearing loss. The tumor was removed by transmastoid approach. After operation, the tinnitus was subsided.