Name: LAW ORLE BOYBEHAVIOR BUSINESSMAN AND ENTREPRENEUR MUSLIM IN OPERATE PRINCIPLE TRANSACTION SHARIAAbstract: The Behavior of Muslim Businessmen and Entrepreneurs in Running the Principles of Sharia Transactions. This study aims to map pe the behavior of Muslim businessmen and entrepreneurs, especially in the cultural aspect business and guidelines for sharia transaction principles compiled by the Association Indonesian Accountant. The approach used is descriptive cauldron tative through excavation information to a number informant Which shared into three groups. The important findings in this study are present differences in perceptions between informants who graduated from Islamic boarding schools and vice versa when apply principle is, tawazun , as well as maslahah . Although Thus, researchers did not find any differences in perception operate principle brotherhood And syumuliyah .Abstract : the Behavior of businessmen and Muslim Entrepreneurs in Running the Principles of Sharia Transactions . this study aims to map the behavior of businessmen and Muslim entrepreneurs , especially in the aspects of business culture and guiding principles of sharia trans- actions compiled by the Indonesian institute of Accountants . the approach used is descriptive