Abstract: Objective To study the distribution and affecting factors of sub-health in university students and to provide proof for health care.Methods University students in 1~4 grades were investigated through cross-section study by a self -developed questionnaire,and the data were satistically analyzed by rank χ² test and Logistic regression analysis.Results The incidence of sub-health was 50.9% in 923 university students,and the higher grade students had higher rate of subhealth.The medical students had a lower rate of sub-heath than other majors.The main risk factors of sub-health were gloom mind,insomnia,being short of physical training.In the economic main aspects,the family yearly income and individual consumption per month were relative to the students.sub-health.Conclusion The universities should increase finance investment measure to raise student's overall health standard.