Objective : This study is to know about the play awareness of occupational therapists with using the sensory integration approach, and is to suggest educational strategies of play as occupation and research. Methods : 124 occupational therapists completed the questionnaires including the general use of play in occupational practice and the use of play assessments with preschoolers, and factors influence on the use of play in occupational therapy for children. Results : Respondents used the play as therapy modality and performed much with based on sensory integration and development approach in individual occupational therapy room with variable play tools. It was restricted to use as objective assessment tools and methods, and had important factors that influence on the use of play in occupational therapy for children; role of occupational therapy in work setting, personal frame of reference and availability of play assessments. Conclusion : The results suggest a need for increasing the emphasis on play in entry-level curricula and continuing education, improving clinician access to valid and reliable play assessments, and completing studies designed to examine the use and efficacy of play in sensory integration therapy intervention.