This purpose of study was intended to identify relationship between stress, depression and suicidal
ideation in post adolescence students. As the method to process the data of this study, was the result of
having conducted the questionnaire survey targeting 326 male and female students of between freshman
and senior attending university in Daejeon and Chungnam area. Data were analysed with, and frequence,
Pearson’s correlation, multiple regression by the SPSS win 20.0 descriptive statistics software. The major
findings were as follows: post-adolescence students stress, and depression was positively correlated with
suicidal ideation. suicidal ideation influenced on stress and depression. The result was significant. In
conclusion, it is important to reduce university students’ suicide ideation.