It has been regarded as important in both academic and practical issues how to evaluate service quality. In addition international traveling will be growing due to increasing income and globalization. Thus, it is very important to measure the international airport`s service quality properly. This study was conducted to identify the service quality factors which are utilized to measure international airport`s service quality. According to the statistical analyses` results of this study, seven service quality factors and thirty two measurement items were found to evaluate international airport`s service quality. They are some different from those which PZB(1988b) identified to measure service quality. This result implies that it is necessary to find the service quality factors reflecting the unique characters of the service organization when measuring service quality of a service organization.