This study is based on the concept of self-identity and sets out the factors influencing students’ self-identity and methods of measurement. It then selects research subjects in line with the study’s objectives and uses a questionnaire to obtain quantitative data. Finally, it uses statistical analysis methods such as structural equation modeling and one-way analysis of variance to explore the psychological mechanisms of students’ self-identity in a cross-cultural education context. The results indicate that the regression coefficients of the study variables exhibit significant correlations at the 5% level, with an explanatory power of 82.10%, quantitatively demonstrating the psychological mechanisms of students’ self-identity in a cross-cultural educational context.