Family has been a golden cage to all human being since dawn of the human civilization. It is a basic home of every family member. In course of time, structure and composition of many aspects of family have been transformed with keeping parity, demand and norm of the existing society. Even society to society, place to place might reflect different forms of it. A number of factors are responsible in changing the forms of family among which globalised era mainly modified capitalistic system would decrease the importance of family interest and increase the interest more on “self” independence, self awareness, self-centred, self-importance and the like. As a result, extended, united, joint family gradually disintegrates to nuclear family. In poststructural period, finally promotes individualism that separates nuclear family into varied forms (proton family, neutron family & electronic family). Society has been changing prominently in terms of family structure through different waves of demographic transition (FDT and SDT). Principally societies of developed and developing countries are going through Second Demographic Transition that reveals a disorientation of family in perspective of demographic transformation. This present attempt indicates the changing patterns of family over different parts of the world and the underlying factors for its shifting and final resultant structure of family.