Objective:To investigate the overweight/obesity status and dietary nutrients’ intake of children aged 6-12 years in the urban of Chongqing

and to provide the reference for the prevention of childhood overweight and obesity. Methods:By random cluster sampling method

6 260 children in five primary schools of Chongqing met the inclusion criteria. A cross-sectional nutrition epidemiological survey was conducted

including anthropometry and dietary survey by food frequency questionnaire. The factors that may cause overweight/obesity factor were analyzed by logistic regression analysis. Results:The detection rates of overweight and obesity were 16.59%（1 000/6 028）and 11.28%（680/6028）;the detection rates of overweight and obesity in boys were 19.11%（595/3 114）and 13.74%（428/3 114）;the detection rates of overweight and obesity in girls were 13.90%（405/2 914）and 8.65%（252/2 914）. Overweight and obese children ’ daily macronutrients（protein :77. 44 g vs. 74.97 g

P<0.05）and micronutrients（vitamin A:989.02 μg RE vs. 939.42 μg RE;vitamin B1:0.81 mg vs. 0.79mg;vitamin B2:1.16 mg vs. 1.12 mg;vitamin B6:1.16 mg vs.1.12 mg;vitamin B12: 8.91 μg vs. 8.31 μg;folate:304.44 μg vs.295.08 μg;niacin:13.00 mg vs.12.42 mg;iron:13.16 mg vs.12.86 mg;Zinc:11.71 mg vs. 11.43 mg

P<0.05）intake were higher than those of normal control group. Binary logistic analysis showed that parental education levels

income

birth weight were influencing factors of overweight and obesity（P<0.05）. Conclusion:The detection rate of overweight and obesity are high and growing rapidly in this urban of Chongqing. We should attach great importance to this issue

strengthen health education and comprehensive intervention of overweight and obesity in order to promote children’s physical and mental development.