Abstract: With the continuous innovation and development of network technology, physical education teaching in colleges and universities under the background of "Internet" has ushered in new opportunities as well as new challenges. In order to improve the teaching effect of physical education in colleges and universities and promote the overall improvement of physical fitness of college students in China, this paper adopts the method of literature and so on to study the teaching design of physical education in colleges and universities under the background of "Internet". The main conclusions: in the physical education teaching of colleges and universities, teachers should change the traditional physical education teaching idea, with the help of the Internet technical dividend, constantly expand and supplement the physical education teaching content in colleges and universities, enrich the manifestation of physical education teaching in colleges and universities, and establish a perfect evaluation of physical education teaching in colleges and universities. Price system. Only by fundamentally changing the traditional physical education teaching mode, fully arousing students' enthusiasm for physical education subjects and daily exercise, and helping students to form a good habit of participating in physical exercise for life.

Key words: "Internet+", Physical education in colleges and universities, Physical education teaching, Optimization design