Objective   To analy ze the overw eig ht and fatness conditions of the pupils aged seven to ten at surveillance schools in Longgang district of Shenzhen city.

  Methods   From April to May in 2005, 4 758 pupils from one to four grades were exmained in three surveillance schools in Longg ang District.According to body mass index(BMI)separate criteria on screening of fatness and overweight of Chinese school age children and adolescent recommended by Chinese work group of International Life Science Institute(ILST)on fatness problem, adopting χ² analysis technique, 240 pupils were selected respectively into fatness group and normal body weight control group from pupils which volunteered to take part in topic research by analyzing 3 836 objects from seven to ten years old.

  Results   (1) The total fatness rate and the over weight rate was 7.22%, 10.53% respectively in 3 836 pupils; both the fatness rate of group at the age of seven years and the overweight rate of group at the age of ten years were the highest; (2)The fatness and overweight rate between boys and girls showed significant differences.(3)There was no significant difference among four age groups.

  Conclusion   Fatness and overweight of the pupils in Longgang District should not be neglected, parents and schools should emphasize on cultivating their custom of living, diet and motor behaviors.