In order to solve the existing problems of data processing of College Students' physical health, this project proposes big data, deeply explores the causes of College Students' health status, analyzes its influencing factors, and finds out the relationship between various influencing factors. This project uses the scientific information technology system of big data to analyze the specific reasons for the decline of College Students' physical health and give improvement measures, actively promote college students to carry out physical exercise activities, further improve college students' physical quality and comprehensive quality, and continuously strengthen college students' physical quality.