Abstract
This study, grounded in Stimulus-Organism-Response (SOR) theory and Conservation of Resources (COR) theory, explores how social support impacts job involvement among newly hired physical education (PE) teachers, with a focus on the mediating role of professional mission. A survey was conducted with 238 new PE teachers, using scales for social support, professional mission, and job involvement. The results indicate the following: (1) Social support and its dimensions significantly and positively influence job involvement among new PE teachers; (2) Professional mission positively impacts job involvement and serves as a partial mediator in the relationship between social support and job involvement; (3) Different types of social support have varying effects on job involvement, with support utilization having the largest impact, followed by objective support, and finally subjective support.