In this study, the factors which are effective to the transition from modern family therapies to postmodern family therapies are examined. In this context, theoretical bases, treatment techniques, the role of the therapists and the clients, and the therapy process were compared in modern therapies and postmodern therapies. As a result factors leading to the study are; gender equality, the shortening of the therapy cycle and economic efficiency, questioning the strong position of the therapists, the need to break away from objectivity, and the change of the therapeutic goals.