The purpose of this study was to investigate the effects of Korean traditional play activities on young children s daily stress. Subjects for the study were 60 five-year-old children attending a kindergarten in Cheongju, Chungbuk. The experimental group consisted of 30 children, while the control group consisted of 30 children. These play activities had been conducted during free-choice activities time for 8 weeks, two sessions per week, and 16 sessions in total. The instrument for Korean Preschool Daily Stress Scale: KPDSS(1998, Yoem, Hyun Kyung) was used to examine children s daily stress. There was significant effect of Korean traditional play activity on young children s daily stress.