[ABSTRACT] You understand the situation of crisis when receiving a demand in relation to the family life cycle and its following difficulties, which the family refers to, to establish a new reorganisation or restructure. Also you understand the crisis when, within the psychotherapeutic process emerges a new petition in the face of a change that affects the family, this implies a different amount of time dedicated to as well the sessions, as the models of intervention.En nuestro trabajo, se entie