This case study aims to examine children and a teacher’s educational experience shown in STEAM education activities focusing on dramatic play. To this end, STEAM education activities focusing on dramatic play with 6 themes were developed, and provided for 5 years old children over 8 weeks. Data were collected by video recording, interview, and research diary. The children and teacher’s educational experience was analyzed using methodologies of case study According to the results, the children’s experience was shown as ‘being fascinated with stories and engrossed in problems in the storiesy’, ‘demonstrating the collective intelligence of scientific selves, ‘integrative knowledge representation as total artists’, and ‘creatively solving problems in play situations.’ The teacher’s experience was shown as ‘feeling happiness through teaching flow and joy of learning together in STEAM education’, ‘creating classroom culture where smile and imagination overflow’, and ‘becoming a teacher who integratively thinks and ceaselessly learn.’