From the perspective of the education objective view, autonomous learning view and experience learning view of "constructivism", the author probed into the purposes, systems and contents of British public school physical education, and revealed the following findings: the purposes of British public school physical education are to cultivate student characters in physical exercising, and to establish student moral codes, thus to realize students’ harmonious physical and mental development; under the precondition of fully respecting and emphasizing student autonomy, the student autonomy system becomes the main organization system for British public school physical education activities; miscellaneous and creative sports events and various sports competitions, enable the atmosphere of public school physical education to thrive, while ensuring that the students learn and experience in real sports scenarios. As for school physical education in China, reinforcing the implementation of the education purpose of "concurrent physical and mental development" becomes the key to school physical development in China; the "student autonomy system" for extracurricular activities and the "intensive scenario experience mode" in physical education in British public schools can provide reference for the practice of school physical education in China.