This article presents the preparation and development of the colloquium Le travail social actuel : entre performance et résistance. This is a collaborative colloquium for-on social work (Lyet & Paturel, 2012) and with the various social work actors — practitioners, students, teachers, trainers, researchers and managers. After a short critical contextualization of current social work, we explain the participatory methodological device that was developed inductively throughout the preparation and running of the conference. Then come the two axes of reflection including proposals for action resulting from the process: 1– Professional identity and the place of social work in institutions; and 2 – Power relations in the field of social work. The conclusion highlights that the collectivization of concerns, difficulties, contradictions, values and good deeds in a co-reflection process remains a key to be considered in order to create solidarity and implement resistance — in its Foucauldian sense, creative and transformative.