In this thesis, it introduces the development and current situation of the early intervention for children with developmental delay in Taiwan. First, it gives an explanation on the policy evolution on this issue after the 1993 amendment of “Child Welfare Law” of ROC, and then it depicts the four steps in the process of early intervention for children with developmental delay, i.e. “Screening and Detection”, “Report and Referral”, “Team Evaluation”, “Intervention Service”. Thereafter, a detailed explanation on the major models of intervention service and a plan on the direction of future development are established.