Various aspects of people’s lives interact with space. Especially the space in which teenagers who establish their identity live is very influential and important as it is a space in a time of establishing identity. As adolescent students' lives are biased toward education, they spend most of their time in school. However, schools are not providing students with a pleasant environment due to uniform space or aging environments. Problems with these spaces can cause stress, fatigue, etc. to students. Through biophilic design, which helps relieve stress, the school space can be planned as a healing space. This improves the quality of the space where students stay for a long time, improving the overall environmental atmosphere and achieving stress relief at the same time. Survey of actual high school students on how often they stay in high school spaces and their preferences for biophilic design. Based on the results, we can expect what biophilic design elements can be applied to space in high school to provide the most effective stress-healing effect for students.