Objective: To analyze the ways of precariousness work of the Family Health Strategy nurses - FHS. Method: Qualitative study, with analysis of categories that emerged from the research through dialogue with the authors studied on the precariousness of health work. The methodology of oral history and semi-structured interviews were used generating questions as information collection instrument. Results: There were seven (07) nurses of the FHS participating, with a predominance of females, being married, aged between 29 and 47 years old. Nurses understand the precariousness work from their working conditions, lack of structural and infrastructural conditions where the working process takes place. Conclusions: Nurses of the FHS analyzes their working conditions with a level of uniqueness of each FHS; some with a greater level of difficulty, showing the lack of materials and supplies and the lack of adequate physical infrastructure for carrying out their work process.