There is a lack of documentation about how nursing students evaluate the debriefing phase in simulation in mental health nursing. The aim of this quantitative study was to describe nursing students' experiences of the debriefing phase after low-fidelity simulation activities in mental health nursing, and to investigate whether background data influence their experience. Data were collected using the "Debriefing Experience Scale" and analysed with descriptive and comparative tests. Students with more than 1 year's clinical praxis experienced significantly that debriefing helped them to clarify problems of communication when encountering persons suffering from psychosis compared to students who had less than 1 year of clinical praxis.