The purpose of this study was to construct a sensory experience happiness program and apply it to 5 - year - old infants to verify the effectiveness of the program after application. What is the development of the sensory experience happiness program as the research problem of this study? What is the ego resilience, peer competence, and euphoria in the effect of the sensory experience happiness program? This study was conducted from October 12, 2016 to December 4, 2016, and the study area is 40 children in the 5th - The sensory experience happiness program reviewed the five - year old Nursery course, which is a kindergarten curriculum in progress by the government, based on the content of the Nursing course. The tools used in this study were ego-resilience (Ko Young-hee, 2010), peer competence (Park Joo-hee, 2001) and euphoria (Lee Eun-ju, 2010). The results of the study showed that the program of happiness through the sensory experience had a positive effect on the ego - resilience, peer competence, happiness total score and sub - factors of the infant. This means that a happy person is enthusiastically engaged in activities that can exert their strengths so that they can demonstrate their abilities and as a result contribute to others and society and live a meaningful life.