The debate on strategies for protecting migrant health has taken shape in recent years around the crucial issue of accessibility. The epistemological framework for this question is found in the systemic vision of global health, in which proximity emerges as an ethical-practical dimension that must inform public health programs. From an operational perspective, starting from experience gained and the literature, some strategies have emerged, centred on networks, which we propose to define in terms of "proximity public health" (PPH). This definition refers to the complex of relations between public institutions, private social organizations and communities present in a given territory, aimed at promoting access to prevention and care resources through the active provision of healthcare outside clinical settings (outreach), the reorientation of healthcare services with a view to greater permeability and usability (system mediation) and the involvement of the population in empowerment processes.