【Objective】 To learn the status of the sensory integration dysfunction (SID) and its influencing factors of children from 2 to 6 years old,and to provide the evidence for early intervention. 【Methods】 The total 530 children aged 2 to 6 years old from 3 kindergartens in Shenhe district were investigated with standardization sensory integrative scale and self-designed influencing factors questionnaire,which were filled in by their parents. 【Results】 The total prevalence of SID was 40.9%.The prevalences of mild and serve SID were 28.5% and 12.4 %,respectively.The prevalences of SID between boy and girl were different,45.0% in boy and 36.4% in girl (P<0.05).No significant difference was found among prevalences of SID by age groups.With unconditioned Logistic Regression analysis,the main protecting factors of SID were good parent-child communication and later maternal childbearing age(OR was 0.21 and 0.34,P＜0.05,respectively).However,the main risk factors were high income,birth disorders and children allergic condition (OR was 1.99,1.82 and 1.84,P＜0.05,respectively).Remarkably,artificial feeding in the first six months was the high risk factor of proprioception integration dysfunction (OR=5.90,P＜0.05). 【Conclusions】 The prevalence of SID is high in children aged 2 to 6 years.Family environment,perinatal situation may influence development of sensory integration.