The purpose of the study was to identify relationships among perceived stress, coping behaviors, and depression in high school students. A correlational descriptive design was conducted. A total of 763 subjects from high schools were participated by purposive sampling in this study. Three instruments, Korean translated Life Events Checklist(LEC) by Johnson and MeCutcheon(1980), Korean translated Coping Scale by Folkman and Lazarus(1985), and korean translated Beck Depression Inventory(BDI) by Beck(1967), were used. For LEC, internal consistency estimate for the tool was α=.73. For Coping Scale, internal consistency estimates for 4 subscales were α=.79～.94. In this study, there was statistically significant relationships between controllable and uncontrollable stress and coping behavior (p