The purpose of this, study was to review literature on the roles and accountabilities of special education teachers to practice family-based programs accepted the best practice in early special education. First, it were reviewed the background of extension of family-based programs and the change of roles and accountabilities fo teachers in early intervention for toddlers and infants with special needs. Second, the basic conceptions and components of the programs were explained. Third, it was considerded that the needs of toddlers and infants, and resources should be assessed individually with understanding th specific characteristics of their families, and considered the roles and accountabilities of skills required in the process of establishing and maintaining the relationships between parent and teacher. The Time is not yet ripe for being applied family-based programs and it is not possible for a teacher only to put in practice the programs in our educational environments. But, teachers are required new roles and accountabilities to practice family-based program in close relationships with parent and family. Six prerequisite conditions were suggested, which will be able to support their success by individualized participation in the cooperative relationship with the family of toddlers and infants with special needs.