In mental health, as elsewhere, nurses are increasingly faced with clinical and organizational problems. At a time when the nursing profession is experiencing new perspectives through advanced practice, particularly in psychiatry and mental health, a cross-sectional view is proposed on the implementation of an experimentation of analysis groups of professional nursing practice at the Nancy psychotherapeutic center (54). The strengths, limits and perspectives of this system are presented for the teams, their management and for the clinical nurse specialist who leads the sessions.