In recent years, with the proposal and steady advancement of the national strategy of National Fitness, campus sports culture has witnessed vigorous development. As a new event added to the 2028 Los Angeles Olympic Games, flag football derives from the training system of American football. It replaces physical collisions with “flag-pulling”, featuring safety, competitiveness and teamwork, and has attracted extensive attention and emphasis in colleges and universities. Vigorously promoting flag football competitions in colleges and universities can not only provide students with diversified sports choices, but also effectively cultivate students’ tactical thinking, teamwork ability and physical quality through competitions, laying a solid foundation for their all-round development. Meanwhile, it enriches campus sports cultural life, further promotes the construction of campus sports culture to a new level, and drives the sustainable development of flag football competitions on campus. Therefore, this paper first expounds the competition-driven advantages of promoting flag football in colleges and universities, and then puts forward the promotion path of college flag football centered on competitions, so as to provide certain reference for relevant researchers.