This paper explores recent developments worldwide, particularly Indonesia, on the protection of the rights of Adat people to their customary lands in Indonesia and analyses them from the international law perspective using Senama Nenek community versus PTPN V tenurial dispute. This paper uses a normative legal research method by examining and reviewing national and international legal instruments as well as literatures in the form of books and journals. This paper finds that Indonesia has legally adopted the norms and principles of respect and protection of human rights, both in general, and specifically related to Adat people. However, Indonesia emphatically needs to seriously implement and enforce regulations related to the protection of the rights of Adat communities to their customary lands and adopt the principles and norms contained in the ILO Convention 1989 (No. 169) and UNDRIP into the national law.