This review examines the literature on the effectiveness of therapeutic day treatment for young maltreated children (birth to 5-years old). Nine peer-reviewed articles reporting treatment outcomes were included. Two independent reviewers evaluated methodological quality. Programs focused on therapeutic, educational, and developmental goals, and services were multi-modal. Many programs offered ancillary services, such as parenting support. Although there were several shared components, there was no standard protocol that guided service delivery, which has implications for replicating and evaluating this treatment approach. Seven studies used a pre-post design, two were follow-up studies, and three included comparison groups. Given the range of problems attributable to early maltreatment and challenges to providing services for foster children, results suggest day treatment may be an effective approach in improving maltreated children’s social-emotional skills, behavior problems, and developmental delays. However, the methodological quality of the studies ranged from poor to fair. Suggestions for future research are discussed.