While the central role of the family in child development is not new, many of the practices used in intervention with families in Early Intervention (henceforth EI) have raised new methodological issues. While traditionally there has been a child-oriented rehabilitation response, there is increasingly a familycentered orientation and a move toward greater interaction. With regard to the different reference documents relevant in EI for professionals, services and institutions working in the field of early childhood (White Paper, 2000, Manual of Good Practice (2000), Technical Recommendations for the development of the AT, 2005; Agency, 2005), there is also work with families as a component of baseline of performance. The aspiration to achieve quality EI may be understood as a continuous process of changes and improvements to major achievements in terms of family care. We know and recognize that family care in EI is currently of interest to professionals in this area. It is perhaps the moment, therefore, to, through the combined efforts of all, attempt to better understand the needs and demands of families and properly plan the interventions we undertake, not only with children but also their families, as an essential element to improving the quality of EI. The purpose of this paper is to review the concept of family, family type, family models (increasingly present in our society), some of the basics of family care in EI and the characteristics of activities conducted with families in EI. It is also to reflect and to provide the results of two studies conducted in the Madrid on the impact of stress in families where there is a member with intellectual disability which creates an imbalance in the family environment (López, 2011) and another study on the organization, planning and resources of family intervention undertaken by professionals involved in the policy areas in Early Intervention (social, health and education). (Andrés, 2011).