The professional identity formation and development of medical students is a gradual process.Its aim is to offer a reference for further research of medical students' professional identity and the improvement of medical practice education in the current medical environment by analyzing the aspects at home and abroad in the research method and research content of medical students' professional identity formation and measurement as well as the present intervention measures that can cultivate medical students' professional identity formation.

Objective:To systematically sort out and cluster the existing indicators of key issues in the quality of postgraduate clinical degree education based on the bibliometric study, so as to build a multidimensional quality assessment index system that integrates scientificity, rationality and representativeness, and to provide a scientific measurement tool for assessing clinical professional postgraduate education in China.Methods:By mining the related functions of UCINET6 network analysis integration software and its one-dimensional and two-dimensional data analysis NetDraw program, the social network analysis (SNA) method was used to extract and cluster the education quality problem set of clinical professional degree postgraduates.Results:A three-dimensional evaluation index system was constructed. The first dimension concluded such 8 key issues in the quality of postgraduate education in clinical medicine as ability assessment, teaching system, teaching quality assurance system, professional cognition and career prospects, assessment and evaluation system and organization, and the pulse taking and diagnosis.Conclusion:The clinical graduate education quality evaluation index system is an effective measurement tool for education quality improvement, based on a multidimensional perspective, with key issues as priority areas for intervention, providing an effective evidence-based basis for ensuring the development of professional graduate education efforts from 2020-2025.