The family approach has been reported to be the most efficient in drugs and alcohol comsume, mental disorders and misbehaviour among children and adolescents. It has important consequences on the families and their children and allows a type of intervention leading to the promotion of protection factors and the reduction of risk factors and misbehaviour patterns. This work sheds light on the process of adaptation of the Strengthening Families Program in Spain (Orte et al., 2006) and the outcomes of the application of the Program of Family Competences until 2011. The work also shows the results of the longitudinal analysis done in 2012, reporting the maintenance and middle term effects of the participation to the program.