The highest body of FMG was the General Assembly (called the National Assembly in the new Statutes of 1936), which was held every year, and that was responsible for drawing up the program of the organization and elec the members of the National Council, which was the body responsible for executing the resolutions of the General Assembly, also which had the power to designate the FMG representative in the Council of the PG.
O máximo órgano da FMG era a Asemblea Xeral (denominada Asemblea Nacional nos Estatutos de 1936) que se celebraba cada ano, era a encargada de elaborar o programa da organización e elixir os membros do Consello Nacional, que era o órgano directivo e o responsable de executar os acordos da Asemblea, tamén tiña a competencia para designar o representante da FMG no Consello do Partido Galeguista.