It analyzes the legal norms that determine the limits and scope of the human rights of migrants in Mexico in the light of the contrasting documentary method and its evolution in order to know the adequacy of the constitutional norms that contain rights of migrants to the International Convention On the Protection of the Rights of All Migrant Workers and Members of Their Families and the norms derived therefrom, norms of internal and external origin, as well as resolutions issued by the United Nations. It is noted that Mexico has reformed the Basic Charter to bring it into line with international standards, and has signed various international treaties to adequately protect migrant and family workers.