On September 14th, 2022, the Academic Degrees Committee of the State Council and the Ministry of Education issued the Catalogue of Graduate Education Subjects and Specialties (2022) and the Management Measures of the Catalogue of Graduate Education Subjects and Specialties, which officially declared International and Regional Studies to be established as a first-tier discipline under the category of interdisciplinary disciplines. It proves the necessity of integrating this discipline with other related disciplines. The interdisciplinary and multidisciplinary nature of area studies is mainly embodied in its definition and disciplinary distribution of the researchers involved, which can be concluded by sorting out the definitions made by different scholars at home and abroad, and analyzing the distribution of overseas research disciplines in the projects supported by the National Social Science Fund and the distribution of the humanities and social science projects funded by the Ministry of Education. According to the results, it can also be fourd that two disciplines of Foreign Languages and World History make major contributions to International and Regional Studies. Languages serve as indispensable tools, while the discipline of World History uses languages to study the history of various countries and regions in depth. Thus, it will be highly beneficial for the development of International and Regional studies to combine Foreign Languages Discipline with the discipline of World History through multiple degrees conferring, faculty sharing and building academic communities.