The integration of research, training, and practice represents a crucial element in the implementation of innovative Programs for child protection. This article examines the role of training within the “Framework for a Participatory Approach in Child Protection” (Lacharité et al., 2022), with a specific focus on its application in the P.I.P.P.I. Through the adoption of Implementation Science, the Training Structure of P.I.P.P.I. functions as a methodological device aimed at fostering the active participation of professionals and families in intervention processes. The article explores the foundational theoretical principles, methodologies, and training strategies that support the work of multidisciplinary teams, promoting innovation in welfare practices. The contribution concludes with a reflection on the need for structured university training based on the LEPS P.I.P.P.I. approach, involving multiple humanities-oriented study programs, including first and second-level Master’s degrees, to ensure quality and sustainability in supporting families in vulnerable situations and to foster the dissemination of innovative practices within the welfare system.