The purpose of this study is to investigate that how much do middle and high school students feel stress and life satisfaction in usual life: how much do stress affect their life satisfaction: and which variables affect their stress and life satisfaction. The samples are 235 middle and high school students in Kangneung. The results of this study are summarized as belows: First, In the case of student s stress, it is perceived that the degree of school life stress is higher than that of family life stress. And the level of family life satisfaction is higher than that the level of school life satisfaction. Second, the students who perceived a lower level of stress showed the higher life satisfaction. The family life stress is a more influential variable than school life stress to life satisfaction Third, the variables that affect the student s life satisfaction are sex, the school achievement, the perception on the level of living, communication with the family, the relationship with the teacher and the family life stress. These variables account for about 58.8% of the variance of the students s life satisfaction.