Objective. Social historical reconstruction of the Ayotzinapa case from the perspective of Social Work intervention models. Methodology. Mixed, a qualitative, retrospective and hermeneutical study with key informants and other quantitative, cross-sectional and correlational research with an intentional selection of mobilization activists in favor of Ayotzinapa. Results. Disclosure of meanings from discourses and narratives of causal attribution of responsibility to the State for the enforced disappearance and genocide of 43 students, as well as relationships that determine the expectations of justice based on the expectations of honesty. Conclusion. The intersection device corresponds to a qualitative and quantitative diagnosis of the social representations of the Ayotzinapa case spread as a central axis of a public agenda.