The main objective of this study is twofold. The first is to investigate the main currents of Korean commercial arbitration. The second is to investigate the research methodology of Korean commercial arbitration in the perspective of disciplinary fusion perspective. The main findings of Korean commercial arbitration are as follows: first, the incidence of commercial arbitration increased in the Korean Commercial Arbitration Board during the period of 2006-2010, second, the primary causes of trade claims are disputes related with payment and those related with sales contracts, third and finally, the number of countries seeking to resolve disputes through arbitration has increased, including European countries. In this setting, it is necessary to investigate commercial arbitration through the inter-disciplinary perspectives. This study suggests that there are five research methodologies of commercial arbitration. They are legal theory related methodology, institutional methodology, cultural methodology, causal methodology and empirical methodology. Traditionally, the legal profession leads the field of commercial arbitration. However, it is necessary to introduce other elements to the field of commercial arbitration. This study highlights the disciplinary fusion approach among five research methodologies of commercial arbitration.