In the United States, less than half of adolescents meet national recommendations for daily physical activity (PA). Schools are an integral intervention point for achievement of national PA youth guidelines. To help schools achieve PA guidelines, multicomponent Comprehensive School Physical Activity Programs (CSPAP) were developed. Each CSPAP component works synergistically to help students achieve 60 min of PA per school day. Physical educators are expected to implement CSPAP components in their schools, but little is known about the preservice physical education teacher (PPET) perception of CSPAP training experiences in teacher education. The purpose of this research study was to understand PPET perceptions of implementing a component of CSPAP at the elementary and secondary level during a student teaching course. Undergraduate (n = 5) and graduate (n = 4) physical education majors enrolled in a semester of student teaching were recruited. Data collection encompassed individual semistructured interviews at three distinct phases (N = 25): (a) pre-student teaching, (b) between student teaching school placements, and (c) post-student teaching. Data coding first revealed codes, then categories, and eventually four themes emerged, each with its own subthemes: (a) preparedness, (b) perceived challenges, (c) implementation, and (d) moving forward. Findings indicate PPETs developed confidence, achieved personal growth and self-actualization, perceived career benefit, and gained a desire for implementing CSPAP in the future. Additionally, implementing CSPAP components during student teaching can increase confidence and desire to implement CSPAP in the future. Further research needs to explore if CSPAP experiences during preservice training influence in-service teachers' CSPAP involvement.