Abstract: Objective To survey the incidence, distribution, rehabilitation and participation in society of the intellectual disability in Hainan. Methods To analyze the data from the Second China National Sample Survey on Disability. Results Among 41214 people, 14075 live in city, 27139 in countryside. The incidence of intellectual disability was 4.3‰. There were significant difference among counties, villages and cities. The distribution of age were 17‰ in 0～6 years old, 6.3‰ in 7～13 years old, 2.3‰ in >14 years old. The ratio of mild to serious disability was 2.3∶1 in 0～6 y, and 1∶1.5 in >7 y. 6.6% sufferers had accepted medical treatment, 1.2% ones had accepted rehabilitation, 1.8% ones had accepted other social support, 82.4% ones had never be assisted. Conclusion The intellectual disability of 0～6 years children in Hainan is seriously. The rehabilitation and social support system should be improved.

Key words: intellectual disability, morbidity, survey on disability, rehabilitation, social support, Hainan Province