Students' emotional and spiritual health suffer as a result of the strict regulations and daily routines of Islamic boarding schools. The purpose of this research is to identify the factors that influence the spiritual health and stress levels of boarding school students attending Islamic institutions in Surabaya. It was a cross-sectional study. A total of 214 female students from Surabaya's Islamic boarding school Amanatul Ummah were selected using stratified random sampling. Level of stress serves as the independent variable, while spiritual wellness serves as the dependent variable. the Spiritual Well-Being Scale (SWBS) and the Perceived Stress Scale (PSS-10). The Spearman test was employed for data analysis with a significance level of 0.05. Nearly all respondents (85.0%) reported considerable stress, and most reported a low level of spiritual well-being (50.9%), according to the research. There is a relationship between students' spiritual well-being and their stress levels, according to the Spearman test results (r=-0.300, p= 0.000). Students' spiritual well-being is negatively correlated with their stress levels; in other words, students' spiritual well-being is negatively impacted by students' stress levels. In order to boost the mental health of their students, Islamic boarding schools should provide recreational activities like group gymnastics.