In this brief analysis, an analytical and descriptive research bias will be used to reflect on the exercise of active suffrage, the granting of the right to vote, as a dimension of citizenship, essential for the consolidation of the fundamental rights of resident foreigners, specifically in the cases of the Brazilian and Argentine legal systems, and what would be the real possibilities for such a concession to contribute to the broad incorporation of this social segment into the political life of these communities at the national, state and local levels. To this end, it intends to investigate the factual and legal conditions that permeate the different levels of restriction on the right to vote for resident and non-naturalized foreigners in the territories of Argentina and Brazil, which in itself undermines the consolidation of human rights in these legal systems. and whether, consequently, this would prevent the full exercise of the other fundamental rights of these individuals. In the search for such information, the theoretical bias arguments will be studied concerning the possibilities of contemplating non-naturalized foreigners, with citizen participation in society through the right to vote, from a literature review on the theory of postnational citizenship, concerned with explaining how the expansion of political participation benefits immigrants, as well as the host community, through the consolidation of human rights. The dissertation will use the deductive method, through descriptive research of the bibliography and data analysis will be the main instruments of investigation, aiming to understand the meaning of the inherent aspects of citizenship, political participation, and national sovereignty.