The Department of International Law was established in 1992 at the Faculty of Law of the Belarusian State University. In connection with the creation of the Faculty of International Relations in 1995, the Department was transferred to the faculty and was one of the three graduating departments (along with the Departments of International Relations and International Economic Relations) that formed the Faculty of International Relations. In September 2000, the Department of International Private and European Law was separated from the Department.

Since the foundation of the Department in 1992, the head of the Department had been Ms. Lyudmila V. Pavlova, PhD in law, associate professor.

Currently, the Department of International Law is headed by Ms. Svetlana M. Ananich, PhD in law, associate professor.

The Department is the base of the Belarusian scientific school of international law (the founders of the school are Doctor of law Yury P. Brovka and professor Lyudmila V. Pavlova).

The Department provides training at the I stage of higher education (bachelor's degree) at the Faculty of International Relations in the specialties: 1-24 01 01 "International Law"; 1-23 01 01 "International Relations"; 1-25 01 03 "World Economy", 1-96 01 01 " Customs Affairs ").

The Department is a graduate in the specialty "International Law" and provides training in the specializations "Public International Law", "Private International Law", "European Law".

At the II stage of higher education (Master's program), the Department provides training at the Faculty of International Relations in the specialties 1 -24 80 01 "Jurisprudence" and 1-23 80 06 "History of International Relations and Foreign Policy". Since 2021, two profiles of the master's program 1-24 80 01 "Jurisprudence" in English have been opened - "International Business Law" and "International Cyber Law".

The Department prepares scientific and pedagogical staff of the highest qualification (postgraduate and doctoral studies) in the specialties 12.00.10 - International law, European law; 12.00.03 - Civil Law; Business Law; Family Law; International Private Law.

One of the important activities of the Department is the preparation of student teams for international competitions in international law.

At the Department, student scientific and practice-oriented circles have been created and operate, as well as a student research laboratory "The Law of International Security" under the guidance of Doctor of law, professor, UN special rapporteur on the negative impact of unilateral coercive measures on human rights Ms. Alena F. Douhan.

The Department of International Law acts as an expert base on various international legal aspects of the activities of the Republic of Belarus. The staff of the Department has repeatedly submitted expert opinions at the request of the state bodies of the Republic of Belarus (the National Assembly of the Republic of Belarus, the Ministry of Foreign Affairs, the Ministry of Justice, the Prosecutor General's Office). At the invitation of state bodies and international organizations, the Department staff have repeatedly participated as national experts in the realization of projects related to the implementation of international legal standards and obligations of the Republic of Belarus, as well as experts in the working groups for the preparation of draft regulatory legal acts of the Republic of Belarus. A number of employees of the Department have repeatedly acted in the Economic Court of the Commonwealth of Independent States as general advisers and experts.

In the process of implementing practice-oriented training of specialists in the field of international law, the Department actively cooperates with state bodies and institutions of the Republic of Belarus, representative offices and bodies of international organizations: the Ministry of Foreign Affairs of the Republic of Belarus, the Institute of Legal Studies of the National Center for Legislation and Legal Studies of the Republic of Belarus, the Ministry of Justice of the Republic of Belarus, Economic Court of the Commonwealth of Independent States, Court of the Eurasian Economic Union, Belarusian Red Cross Society.