Abstract: Objective To understand the healthy life behavior,nutrition and extracurricular physical training of college students in China,and to provide a reference for putting forward the corresponding suggestions.Methods A cross-sectional survey was used to select 2 261 undergraduates from 4 comprehensive universities in China to have questionnaires.Results The standardized score of the healthy lifestyle of college students was 65.7 points,the standardized scores of 8 dimensions were between 50-70 points,of which the standardized score of "exercise" was the lowest(only 52.1 points).Nutritional Knowledge (K score),Attitude (A score) and behavior (P score) were (10.5±3.6) (20.8±4.2) (18.3±3.7) points,respectively.According to Logistic regression analysis,nutrition K,A and P scores,intensity of each exercise,the importance of physical exercise to people's overall health,the number of physical exercises during the school week (except physical education),whether they were willing to take part in physical exercise,and the present attitude of after-school physical exercise were positively correlated with the overall score of healthy lifestyle (P<0.05).Conclusion The college students have got a low evaluation score in their healthy life-style and they have got the lowest score in sports exercise,a relatively low score in the nutrition knowledge.Most students have a relatively good attitude towards nutrition,but lack of the motivation of the transformation into behavior.The students of good extracurricular exercises have a better selfevaluation of their healthy lifestyle.