The Public Health Special Services (Serviço Especial de Saúde Pública -SESP) was created in 1942 from an agreement between the Brazilian and North American governments, having as functions, the sanitation of regions which produced primary material, such as the rubber from the Amazon region and the iron ores and mica from Vale do Rio Doce. SESP expanded in the rural Brazilian regions, where it built nets of local health units, focusing not only on the preventive medicine, but also the healing one, having as its main axis, the sanitary education in the most different spaces, among them, at primary schools. The proposal of this article was to present the conceptions of sanitary education, as well as the educational health activities turned specifically to schools, seeking to articulate the sespian conceptions with the subjectivity processes, which may or may not have contributed in the production of other and new identity formers. For this study, we adopted the time cut from 1942 to 1960, stage when SESP presented itself as a bilateral agency, and gifted with certain regimental and budgetary autonomy in relation to the former Ministry of Education and Public Health. As historical sources, its publications at the time were used, the SESP Magazine and the SESP Bulletin.