Abstract: Objective To explore the intervention model of drowning prevention for the floating children and to provide scientific basis for the preventive measures.Methods The children of migrant workers from 1st to 9th grade in the two urban districts were selected as the experimental group and control group respectively.In the experimental group,the health education based on health-promoting ecological model was provided.Meanwhile,integrated preventive strategies about social mobilization and environmental improvement were carried out,while the normal health education was implemented in the control group.After two-year comprehensive intervention of drowning floating children,the effect of knowledge,attitude and practice was evaluated.Results After the intervention,the drowning-related awareness rate and the rate of having correct concepts in the experimental and control groups were all increased significantly compared with those before the intervention(P<0.01),but the improvement was much higher in experimental group than in the control one.The incidence rate of drowning-related high-risk behavior in the experiment group after the intervention (7.3%) was obviously lower than that before the intervention(11.4%) (P<0.01),while there was no significant difference in the control group before and after the intervention(8.4% & 7.7%).The morbidity of non-fatal drowning in the experiment group after the intervention was 4.8%,lower than that before the intervention(13.1%) (P<0.01),while there was no significant statistical difference in the control group before and after the intervention(8.1% & 7.7%).Conclusion The modal of intervening drowing comprehensively based on ecological approach made some effects,which can be further taken as a reference for preventing the floating children from drowning.