International law is a field of knowledge that has been criticized by various approaches, and its role in establishing the inequality and hierarchy that govern the world has been studied and stressed. "Third World Approach to International Law" in its critical stance on this system focuses on the historical suffering of the deprived and the underprivileged people of the world, and points the finger of blame at international law itself as one of the important factors in establishing this inferiority. This critical approach has not ignored the international human rights system in its criticisms, despite its deceptive and justified appearance, and emphasizes its function in legitimizing the process that leads to the continuation and consolidation of this inequality. In this article, by descriptive-analytical method, after analyzing the main criticisms of this approach to international law, as well as the critique of this approach to human rights, its nature and purposes will be examined.