In general, International area studies integrates all the issues including culture, history, politics, and society, focusing on a certain international area like China. Therefore, this study requires comprehensive analysis capability for wide fields such as culture, history, politics, economy etc. about a certain area. Accordingly, when compared to study methodologies requested by single academic category like existing politics, economics, cultural studies, historical studies etc., it would be natural that this requires more comprehensive, interdisciplinary thinking. But limitation of study method in international area studies including sinology has always become an important issue in the study realm - related scholars mainly quoted methodology of existing academic studies because independent study methodology for International area studies is still poor. Due to such limitation of methodology, scholars with critical view in the nations where International area studies including sinology are comparatively active have discussed problems of their academic study, and suggested main issue of limitation as an independent academic studies. In Korea, International area study actively started after middle 1990s, so it can be said that study on its study methodology just actively started. In the body, the author analyzed problems of study methodology in international area studies including sinology discussed until now. Based on its results, the study intended to discuss possibility of study methodology which can overcome issue of study methodology under going and can bring more objective study results, considering integrated and interdisciplinary aspects of international area study.