Objective: To identify health promotion strategies used by managers in primary health care. Method: Qualitative research, of a participant action nature, which adopted the Culture Circle proposed by Paulo Freire as its methodological reference. Eleven primary health care managers from a medium-sized municipality in southern Brazil took part. Results: Nine generative themes emerged, categorized into four themes that highlight the interconnection between health promotion, social determinants and primary health care. These themes highlight preventive approaches, healthy habits and underline the need for a multidisciplinary approach to health care, recognizing the complexity of the dimensions involved, the influence of social determinants, environmental and health issues. These aspects call for intersectoral policies and actions, demonstrating the viability of health promotion in line with the principles of the Unified Health System. Final considerations: The autonomy of professionals working in primary health care services is highlighted, especially that of nurses, who play a central role in connecting and organizing health promotion actions.