The theme of this study deals with the nursing practice of middle level workers whose field is primary health care services since mid 1990's. It was developed with the objectives of distinguishing the working process of primary heath unit auxiliaries and nursing technicians of the city of Ribeirão Preto-São Paulo, through the perspective of the integrality of the action, distinguish the socio-demographic profile of the auxiliaries and nursing technicians members of such primary health care service, analyze the conceptions of these middle level nursing workers under the constitutive elements of the primary health care working process and identify and analyze the complicating and facilitating aspects to develop the working process through the perspective of integrality. It was formed a descriptive nature and qualitative approach study. In order to collect the data, structured observation and semi-structured interview were applied. Ten nursing auxiliaries and two nursing technicians took part of such study and for the obtained data analysis, thematic analysis was employed. During the analysis process it was possible to identify two distinguished compositions in the working process of these agents, where it was found in a predominant way the organization of the working process to assist people with the need to deal with diseases/health problems, but it was also found potentialities for the working process development towards the integrality of attention. It was concluded that facing the exhaustion of resources available in primary health care and the feeling of impotence in the act of taking care, these workers have been searching for strategies to try to help users who seek health service units with problems which do not fit the ones solvable through medical consultation, drugs or technical procedures. It is considered necessary to introduce continuing education in primary health care daily work and within such practice, qualify the listening of workers who act in such services. It is also considered as necessary to expand the discussion forums and the actions, including universities, nursing councils and national, state and municipal political instances as agents to promote structural changes in the training of middle level nursing workers so that they develop the skills necessary for work in primary health care from the perspective of integrality of attention.