The strategy to support community development, put forward by the Quebec public health authorities for nearly ten years, encourages the health and social services network to intervene through a social territorial logic. As the community organizers of the Centres de santé et de services sociaux (CSSS) are the professionals who intervene locally, we were interested by the influence of this strategy on their practice. This article summarizes the results of a doctoral research conducted at the CSSS de la Vieille-Capitale, obtained through the implementation of a reflective practice group for community organizers on the subject of community development.