(in English): This thesis is devoted to the time of the Brazilian military dictatorship from 1964 to 1985 and effects of artists during these years. The first chapter outlines the historical development leading to the onset of military dictatorship and the subsequent period of military rule until its fall in 1985 and the return to democracy. The second chapter is a brief overview of the development of Brazilian art in the 20th century until the military coup. Then this thesis is focused on the visual arts from 1964 to 1985 and the text describes each part of the military dictatorship and the rate of censorship and restrictions. Further text describes the front anti-regime artists and their work at major exhibitions and demonstrations. For better illustration of the effects of artists during the military dictatorship there are two separate chapters devoted Artur Barrio and Cildo Meireles, two significant anti-regime artists. The conclusion summarizes the findings.