Abstract: A questionnaire survey was conducted on 828 teacher trainees majoring in preschool education from two universities in Anhui Province using the Occupational Identity Scale, the Learning Commitment Scale, and the Core Self-Evaluation Scale to explore the relationship between occupational identity, learning commitment, and core self-evaluation, and to examine the mediating role of core self-evaluation in the relationship between occupational identity and learning commitment. The results showed that career identity, learning engagement and core self-evaluation were positively correlated with each other, and core self-evaluation partly mediated the relationship between career identity and learning engagement.