Glomus tympanicum tumor is considered to be one of the disease which necessitates the differential diagnosis of pulsatile tinnitus. This tumor presents as a middle ear cavity mass through intact tympanic membrane, and also presents otological symptoms such as hard of hearing, tinnitus and facial palsy. We experienced a case of glomus tympanicum tumor in 54 year-old female with several month-history of pulsatile tinnitus, which was completely managed with excision through tympanotomy.