The Philosophy Department was established in 1981, with the objective of developing students’ understanding of political science and human values, which are necessary for building a society with firm foundations. The study of philosophy and political science promotes critical thinking and reasoning skills in students, who go on to provide human resources critical for the country's development.

Since 1996, the degree of Bachelor of Arts in Philosophy has benefited from the extensive support of New Humanity, an Italian NGO. Over the years, members of the department have received extensive training from various international institutions including New Humanity and the Catholic University of Milan (Italy), Hong Kong University (Hong Kong), Sydney University (Australia), and Ateneo de Manila University (Philippines). The department is currently seeking further support for its research into Cambodian philosophy, to continue making a contribution to Cambodia’s intellectual and research capacity. Through its research and teaching work, the department seeks to enable students to reflect on the evolution of Khmer society throughout history, and on the varying worldviews and philosophies of societies over time.