This article deals with changes of the Iranian family in the process of its demographic transition. A global theoretical approach was constructed for this study. In this approach, in addition to local conditions and factors, external forces of globalization were also considered to be at work, changing Iranian family. Because different social groups, with different predispositions, have been differentially exposed to and interacted with external forces, one can simultaneously find families that with respect to type, style of formation, age at marriage and level of childbearing-regarding western experience, belong to non-simultaneous social contexts. Nevertheless, the general trend of Iranian family change has been towards the nuclear family, less stability, increased age at marriage and lower level of childbearing. It was inferred that, prior to the completion of its demographic transition, Iranian society has already partially started its second demographic transition. Given the pace of the communication revolution and the increasing proportion of Iranian users of modern means of communication, especially internet, it is also inferred that changes in the Iranian family will even get faster in the future. It was therefore suggested that, for more effective study of the Iranina family's stability and change, (1) the Statistical Center of Iran adopt the currently used classification of households and provide adequate family statistics, and (2) some eligible universities undertake to set up a "community and family study center".