Based on the “Curriculum Plan and Physical Education” and “Health Curriculum Standards (2017 Edition)” (hereinafter referred to as the “Curriculum Standard”) of ordinary high schools revised in January 2018, combined with the actual situation of physical education teachers, venues and equipment’s in experimental schools, in the teaching of compulsory elective modules of physical education and health curriculum in experimental grades, according to students’ interests and hobbies and existing sports skills, this study adopts the teaching organization form of in-class option, aiming to better implement the new round of curriculum reform and explore practical practices that can be used for reference for schools and teachers. It is found that teaching in the form of alternative teaching in class is beneficial to the development of students’ core literacy of physical education and health. It overcomes the teaching difficulties of module options caused by objective factors of the school to the maximum extent, and creates conditions for students to study physical education and health module, so as to put the curriculum reform into practice [1].