Usul fiqh is a sharia research method that is used to analyze various fiqh laws related to contemporary Islamic economic activities. This paper describes the position of ushul fiqh as a method of learning sharia. This paper also describes the position of ushul fiqh as a method in contemporary economic practice. The results of the study indicate that ushul fiqh is an important aspect in analyzing contemporary fiqh legal findings, especially in Islamic economic activities. The mechanism is referred to the texts of the Qur'an and al-Sunnah, the arguments of Ijma' and Qiyas, as well as the use of the Maslahah and 'Urf methods in an effort to achieve in-depth analysis results related to economic cases that arise at the present time.