Objective To observe the risk factors of infectious diarrhea among preschoolers in one community of western district Beijing

which providing a basis for clinic prevention and treatment.Method Adopted case controlled study.Selected and regarded those preschoolers who had infectious diarrhea in one community of western district Beijing in 2013 as case group

while chose those healthy children according to the 1∶1matching condition as controlled group.Adopted unified questionnaires to investigate and used single-factor and multi-factor conditional logistic regress analysis to screen the risk factors.Results The single-factor analysis was statistically significant（P<0.05）

including variables of kindergarten

family per capita income

caregiver education background

toilet style

frequency of close contact with diarrhea patients within 2 weeks

handwashing

cleaning of glass per day

separation use of chopping board for cooked and uncooked food

breaking bad behavior of eating hands.The multi-factor analysis was statistically significant（P<0.05）

including risk variables of no private bathroom

no hand-washing at home

no hands eating habit correction（OR value were4.749

12.360

2.369）.Conclusion The currency of infectious diarrhea among preschoolers can be prevented by teaching children washing hands

breaking bad behavior of eating hands

and improving condition of public toilets.