This report represent the 14 cases of Nasopharyngeal fibroma which managed from our clinic during 1961 to 1965. On the researching about the time of operation, bleeding amount and postoperative complication dividing into Hypothermia group and Control group, it is certainly apparent that significantly diminished bleeding and operation time, and also satisfactive result was obtained without having complication. Therefore, I do like recommend hypothermia method on nasopharyngeal fibroma cases, and concomitantly presented on the 26th meeting of the Korean Otolaryngological Society before on November 9, 1963.