The right to sustainable peace is an example of the third generation of human rights and has foundations, including the inherent dignity of man, which has certain functions, and these functions have been considered in this article in an inductive and deductive manner with the aim of analyzing and explaining their functions and benefits. Naturally, in any society where human dignity is respected, the right to sustainable peace is justified and legitimate, and at the same time, it also determines its scope and scope. In the event of incompatibility of negative peace with justice, equality of opportunity, and the first and second generations of human rights, negative peace will not prevail. Because if negative peace is established at the cost of violating the aforementioned issues, human dignity will be violated. Similarly, torture will not be justified and legitimate in order to guarantee negative peace, because torture is against human dignity. Moreover, ensuring traditional security cannot violate the right to sustainable peace. Ultimately, sustainable peace is dependent on the realization of justice and equality of opportunity, because human dignity is the guarantee of all.