Objective : This study was to perform the education of the ASI® intervention for six occupational therapists and to know the delivery of ASI® core principle through a self-assessment, a peer-assessment, an expert-assessment. Methods : The study performed from November 2013 to June 2014 for six occupational therapists without completion of the education of ASI® intervention. The participants were educated about the ASI® intervention during 8 weeks and took and assessed films before and after education. The assessment was the self-assessment, the peer-assessment, the expert-assessment and the data of assessment was analyzed by Mann-Whitney and ICC. Results : The result of process factors before and after education according to methods of assessment, the self-assessment was significant in ‘self-regulation,’ ‘collaboration,’ ‘ensures success,’ ‘play,’ ‘alliance,’ and ‘total item’. The peer-assessment was significant in all item exception ‘safety’. The expert-assessment was significant in all items exception ‘sensory opportunities’. The results of self-assessment and expert-assessment before and after the education of ASI® intervention were significant in ‘safety’. Conclusion : The results of this study provide to need the education of ASI® intervention for accuracy sensory integrative intervention. The occupational therapists need to check the style of intervention.