To explore the core competencies of interventional nurses and provide guidance for improving the examination and evaluation system of core competencies of interventional nurses.

Purposive sampling strategy was used to select eight interventional nurses who participated in the first training course for interventional specialist nurses of Guangdong Nursing Association, four interventional doctors and four interventional nursing managers as the research objects, and qualitative research was used to conductface-to-face and semi-structured in-depth interviews.

Six core competencies were extracted, namely professional knowledge and professional practice ability, critical thinking ability, emergency rescue ability, communication, coordination and cooperation ability, clinical scientific research ability and clinical management ability.

Professional knowledge, professional skills and emergency rescue ability are the necessary core abilities of intervention specialist nurses. The evaluation criteria, training mode and training objectives of intervention specialist nurses need to be further unified.