this study reviews the history of the national anti-asylum struggle in brazil. it analyzes some of the movement's difficulties, achievements and challenges. the theory of social movements is used here as an important analytical tool to understand this collective action, to the degree in which theory allows an appraisal of this type of social action rooted in its many configurations, evidencing the complexity of the contemporary world. the anti-asylum movement is composed of many stakeholders whose struggles and conflicts have been developed through different social-political-institutional dimensions. it encompasses at different moments and to different degrees, a movement which articulates solidarity and conflict relations and social denunciations in an attempt to transform relations and conceptions that are discriminatory and which are intended to control the "insane" and "insanity" in our country.