Objective:To study the characteristics of healthrisky behaviors among 4~6 Grade pupils in Chongqing

China.Methods:1 523 students were sampled from 9 elementary schools(4~6 grade)in Chongqing municipal main urban districts by cluster stratified random sampling method.Both self-designed general questionnaires and health-risky behaviors questionnaires were applied to test these students.1 501 valid questionnaires were analyzed.Results:The incidences of frequent hurt behaviors-teasing animals

fighting each other and violating street-crossing rules were 8.06%

2.86%

and 2.47% respectively.The incidences of frequent suicidal ideas

suicidal plans and suicidal attempts were 4.20%

1.40%

and 0.67% respectively.The incidences of frequent addictive behaviors-drinking alcohol

using computer ≥5 hours a day not for school tasks were 0.80% and 0.67%.The incidences of occasional and frequent behaviors—fighting each other

violating street-crossing rules

getting to high place and playing

intimidation

verbal abuse or assault by peer

carrying a weapon

smoking and drinking alcohol were higher among males than females(P<0.05).Lack of exercises and lack of preparations before exercises were higher among females than males(P<0.05).But there was no gender difference in relevant behaviors of committing suicide.Conclusion:There are significant gender differences in these health-risky behaviors except relevant suicide behaviors.The incidence of health-risky behaviors is low overall among the 4~6 Grade pupils in Chongqing

China.But some behaviors such as lack of exercises

lack of preparations before exercises

unhealthy weight control

and frequent suicidal ideas among some pupils should be concerned seriously.