We experienced a case of 14-year old male who had 3 episodes of recurrent aseptic meningitis during four years. The patients initially presented with clinical and laboratory feature of bacterial meningitis, however, extensive serological investigation and cerebrospinal fluid analysis failed to reveal a specific cause. Immune system studies were unremarkable. Cranial computed tomography performed during the attack and magnetic resonance imaging when the patient was asymptomatic were both normal. A tentative diagnosis of Mollaret meningitis was established at the 3rd episode. We report this case with a review of related literatures.