Objective To explore the psychological process of nursing undergraduates in midwifery. Methods A semi-structured interview was conducted on 17 nursing undergraduates in midwifery. The grounded theory method was used. The data were analyzed through constant comparison,three-level coding and memoranda writing. Results Nursing undergraduates in midwifery had 4 periods of psychological processes,including the initial stage of vision,stage of learning exploration,stage of growth and transformation,and stage of rational choice. Intrinsic motivation,professional cognition,professional emotion,coping strategies and external influence affect the development of students’ psychological process. Conclusion According to the students’ psychological process,we encourage students to develop profession knowledge based on interest,suggest schools adopt comprehensive measures to improve the professional training scheme and help students overcome difficulties in their studies,and call for policy supports from the government to provide students with more employment options and alleviate the imbalance of midwife human resources.