|（National Institute of Educational Sciences，Beijing 100088，China)
Abstract: Based on human movement development laws, cognition development laws, body development laws, physical quality development sensitive periods, movement skill formation laws, and the needs of physical education course teaching practice, etc, the author put forward the concept of the “window period” of movement skill learning; established the theoretical framework of the “window period” of movement skill learning, which includes a struc-tural system with three layers: the existence form, essential characteristics and internal laws, in which, the existence form is the age group, i.e. the window period; essential characteristics include stability, progression and superposi-tion; included in internal laws, stability is established according to the degree of development matching, progression is arranged according to the degree of movement difficulty, superposition is oriented according to the degree of function coincidence. The “window period” of movement skill learning and its theory provide guidance for solving theoretical conundrums in the construction of the integrated physical education curriculum system, and provide theoretical assurance for further deepening the reform of physical education course teaching integration.
Key words: school physical education；theory of the “window period” movement skill learning；integrated physical education curriculum system