With the development and progress of the times, multimedia technology covers all aspects of our production and life, especially in the education and teaching reform of our country, which has made outstanding contributions. This paper expounds the feasibility of multimedia teaching in primary and secondary school physical education from three aspects: the role of multimedia technology in primary and secondary school physical education, the precautions of using multimedia technology and how to promote the relationship between teachers and students. This paper studies the application of new media technology in Physical Education in the new era, finds out various problems in the process of developing countries, and finds out several strategies according to the problems, hoping to improve the level of physical education in China, so that the physical education discipline in China can get a good development.