Despite the advances that constitutionalism and humanism have made, the 20th century also saw an increase in individualism and anthropocentrism, resulting in a potentially irreversible global environmental crisis. It is in this context and in order to tackle these issues that the ethical and legal-political paradigm of sustainability has emerged. The general aim of this paper is therefore to characterize it as the structuring principle of the new genesis of constitutionalism. The specific objectives are to demonstrate its influence on the entire legal-political system, the overcoming of its anthropocentric concept, the re-reading of dignity and the new ownership of rights and the emergence of the Sustainable State. The new constitutional pact must go beyond the limitation of state power that benefits only the human person, conferring dignity on the entire ecosystem. The methodology used was the inductive method, with the techniques of reference, categories, operational concepts, fiching and bibliographical research.