To investigate the relationship between the practice environment and the professional maturity
of teacher trainees, and the role of professional commitment and proactive personality between them.
The Internship Environment Scale, the Professional Commitment Scale, the Proactive Personality Scale,
and the Career Maturity Scale were investigated to 382 normal students.The results show that there is a
significant positive correlation between practice environment and normal students’ professional maturity;
Professional commitment partially mediated the relationship between internship environment and
career maturity of teacher trainees; Initiative personality plays an intermediary role between practice
environment and normal students’ professional maturity; Professional commitment and initiative
personality play a role together, which plays a chain intermediary role between the practice environment
and the professional maturity of normal students. The results of this study enrich the educational
theoretical research of normal students and provide a reference basis for improving the professional
quality of normal students.