In this perspective, concepts of social network and support have been presented as resources applicable to nursing practice with a view to improving the quality of life of families receiving care. However, literature shows that a consensus on these two concepts has not been achieved in the nursing area and that, most times the concept used to understand interpersonal dimensions is social support. This lack of agreement on these concepts, as well as scarce research on the methodological framework of social network of breastfeeding women, justify this study.