Atraumatic care is one of the important principles in pediatric nursing. Immature cognitive development, however, and limited coping ability exacerbate tension when children are ill and require hospitalization. Therapeutic play has been demonstrated as an effective nursing intervention. Through therapeutic play, children can acquire opportunities to express themselves and deal with stress related to health experiences. Also, nurses can gain insights into children's cognition, perception, and needs. This paper introduces concepts of therapeutic play. We hope that nurses will be able to incorporate it into pediatric nursing practice and provide care as atraumatically as possible.