Abstract: In recent years, the education administrators have attached great importance to the comprehensive quality of students, among which the physical health of students is the most important. However, the lack of self-control and unscientific lifestyle has a great impact on personal physical health of college students. With the methods of literature review, questionnaire survey and mathematical statistics, this study made a questionnaire survey on the students, and has obtained the current situation of college students' lifestyle in Tianjin, and the influence of different lifestyles on their physical health. This study put forward some suggestions on how to improve their physical health, which provides reference for researchers in the same field and for further research.

Key words: college students, lifestyle, physical health