The following manuscript explores the application of family science theories to the field of child life. Ecological systems theory, family systems theory, and conflict theory will be presented and applied to child life. These theories explain the responsibilities and experiences of the specialist, their relationship with patients and families, and their own challenges in the work environment. The discussion section details the strengths and limitations of the selected theories, along with an explanation of why other theories were excluded from this analysis. Implications will be addressed.