This study aims to get evaluation from users about design of health care environment for inpatient and their family in pediatric wards and make clear the mental effect to ease their stress in the hospital. We got questioner evaluation on interior design from children, their attendances, nurses and doctors. The results are as follows; 1) The evaluation from users vary with their positions in the wards. 2) We can clear the effect of interior design; (1) hospitality (2) distraction (3) refreshment. (4) encouragement. 3) It is need consideration about difference of the stage of hospitalization and their developmental stage to study more suitable design.