Meningocele is a protrusion of meninges through a defect in the skull base. It is a rare but potentially life-threatening condition requiring surgery. We present a case of 59-year-old woman complaining of persistent otorrhea of right ear and pulsating cystic mass occupying external auditory canal in her right ear. The patient had underwent right canal wall up mastoidectomy, tympanoplasty about thirty years ago. Radiological evaluations revealed bony defect at the tegmen tympani and tegmen mastoideum, and cystic mass filling this defect and external auditory canal, suggesting temporal bone meningocele. The meningocele was resected and the bony defect of tegmen was successfully repaired via combined transmastoid and middle cranial fossa mini-craniotomy approach.