Abstract: Objective To investigate the status quo of transformational leadership,organizational commitment and job burnout of secondary vocational teachers,analyze the intermediary role of organizational commitment between transformational leadership and job burnout,so as to provide a basis for alleviating their job burnout. Methods In July 2022,400 secondary vocational teachers from a provincial four-star vocational middle school in Nantong City were collected by the convenient sampling method. The transformational leadership scale,organizational commitment scale,and job burnout scale were adopted for the questionnaire investigation. SPSS 23.0 was used for data analysis,and AMOS 23.0 was used for intermediary effect test. Results The scores of transformational leadership,organizational commitment and job burnout in secondary vocational teachers were （55.52±25.18）,（33.78±11.34） and （77.37±12.71）points,respectively. The correlation analysis showed that the transformational leadership was positively correlated with organizational commitment（r=0.633,P<0.01）,and the job burnout was negatively correlated with transformational leadership（r=-0.258,P<0.01） and organizational commitment（r=-0.463,P<0.01）. The results of structural equation model showed that organizational commitment played a complete intermediary role between the two,and the intermediary effect was -0.133. Conclusion The level of job burnout of secondary vocational teachers is relatively high,and organizational commitment plays a completely intermediary role between transformational leadership and job burnout of secondary vocational teachers.

Key words: Secondary vocational teachers, Transformational leadership, Organizational commitment, Job burnout