[por] Estuda a função da previdência social na ordem econômica brasileira, observada a reforma desencadeada pela Emenda constitucional 103/2019; e, por objetivos: analisar a ordem social, a seguridade social, a previdência social, a dignidade humana, a justiça social, bem assim, a reforma da previdência social dada pela Emenda constitucional 103/2019 e a função previdenciária na ordem econômica brasileira. O método de estudo corrobora-se pela pesquisa bibliográfica (publicações) e documental (jurídicos), além das fontes de pesquisas formais (leis lato sensu e doutrinas) e materiais (fatos e valores da sociedade).[eng] The article has as object of study the function of social security in the Brazilian economic order, observed the reform triggered by Constitutional amendment No. 103/2019; and, by objectives: to analyze the social order, social security, social security, human dignity, social justice, as well as the social security reform given by Constitutional amendment no. 103/2019 and the social security function in the Brazilian economic order. The method of study is corroborated by bibliographic (publications) and documentary (legal) research, in addition to the sources of formal research (lato sensu laws and doctrines) and material research (facts and values of society).