ABSTRACT Objectives: to analyze the social representations of the quality of life of the young people living with HIV. Methods: qualitative survey, based on the Social Representations Theory, with 24 young people living with HIV, monitored in specialized services in Rio de Janeiro, through semi-structured interviews, and the analysis supported by the software IRAMUTEQ. Results: multidimensionality of the quality of life was observed unfolding the implications of living with HIV/aids concerning the familiar and social support network, time of diagnosis, healthcare services, antiretroviral therapy, and prejudice expressions. Final Considerations: a conceptual synthesis of quality of life is observed when it is associated with healthy lifestyle habits, interpersonal relationships, and health services and professional practices.