The purpose of the study was to review literature on universal and residual services of early family∲intervention. The review was focused on early family-intervention cases proven effective in empowering children, parents and families, which, in turn, brought about positive synergy effects to the community at large. Literature review was presented in the following order: first, the universal needs for early family-intervention; second, critical components and strategies of early family-intervention for successful outcomes; third, on-going international projects of early family-intervention, both universal and residual services, proven effective on a long-term basis. In conclusion, findings of the study were summarized and the theoretical, practical and political implications for Korean society were further discussed.--