The 1970 edition of the Campeonato Carioca kicked off on June 27, 1970 and ended on September 20, 1970. It was organized by FCF (Federação Carioca de Futebol, or Carioca Football Federation). Twelve teams participated. Vasco da Gama won the title for the 13th time. no teams were relegated.
The tournament would be divided in two stages:
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