The authors emphasize the importance of supervision in administrative process including education, control and evaluation. The supervision in the primary assistance program helps to maintain acceptable standards of assistance to pooulation and to professional development. They describe their experience as a member of Vitória Project, the activities and role of health aid and the attempt to obtain a supervision model to be used in distinct local. Thev use auto-evaluation, interview and a task list. They showed information about recruitment, selection and training aids, evaluation results and suggestions to implant this kind of program