Abstract: Aiming at the violence of psychotic patients and the current situation of domestic medical staff coping with violence, this paper elaborated the research progress of three kinds of de-escalation technology models dealing with violence in foreign countries through the analysis of relevant literature. This article provided references for domestic research on violence de-escalation technology and evidence-based support for clinical work.

Key words: psychotic patients; violence; mental health; violence de-escalation technology; model