The sensory integration approach originates from physical (anatomical and physiological) evidence whilst the play therapy approach originates from psychological evidence. Although both of these approaches are used as intervention methods with children who display behavioural, emotional and social difficulties, the researcher considered whether it was important for a play therapist to be aware of sensory integration therapy. The researcher then started this study in order to investigate the incidence of sensory integration dysfunction in children who receive play therapy. After completing the study, the researcher is of opinion that it is indeed necessary for play therapists to be aware of sensory integration theory in order to provide holistic play therapy intervention and to ensure positive therapy outcomes.