Against the backdrop of China’s vigorous promotion of building itself into a sports power, campus sports culture plays an increasingly vital role in quality education at the junior high school level. Based on clarifying relevant core concepts, this paper analyzes the overall situation and current shortcomings of campus sports culture construction in junior high schools. It proposes a systematic construction path from six aspects: material conditions, institutional guarantees, activity forms, spiritual connotations, home-school cooperation, and the creation of distinctive features, along with corresponding implementation strategies. The aim is to provide scientific and feasible practical references for junior high school physical education teachers and school administrators.