Objective To investigate the prevalence and current situation of rehabilitation of autism (ASD),cerebral palsy (CP),and mental retardation(MR) in children aged 0~6 in Hainan province. Method A house-hold questionnaire survey was carried out from September,2015 to September,2016.Children from 18 towns in Hainan Province were selected by stratified cluster sampling.Doctors from Children's Hospital of Hainan province made diagnose,those diagnosed with autism,CP and MR would be asked the medical history and whether they received rehabilitation training.Data were compiled by Epidata 3.2 and analyzed by SPSS l7.0 statistical analysis software. Results A total of 38 267 children aged 0‵6 years were surveyed.235,229,and 80 of these children were diagnosed with ASD,MR,and CP respectively.236 children received rehabilitation with the rating of 43.4%.The proportion of ASD,MR,CP receiving rehabilitation training were 58.30%,20.08% and 66.25% respectively.Among the training children,48.06% were boys,and 28.79% were girls. Conclusions Children diagnosed with CP or autism have more opportunity to receive rehabilitation training than those diagnosed with MR.Boys have more opportunity to receive rehabilitation training than girls,and children living in cities have more opportunity to receive rehabilitation training than rural areas.The situation of rehabilitation intervention needs to be further improved,and these basic data can be used for further research on prevention and treatmen of autism,cerebral palsy and rehabilitation.