Suicide is becoming an issue of the Korean society that needs urgent attention recently. The suicide rate has rapidly increased from 9.1 per 100,000 people in 1985 and 10.6 per 100,000 people in 2000 to 31.7 per 100,000 people in 2011. As for the age group, the number one cause of mortality in teens, twenties and thirties is suicide. While the total number of deaths in teenage adolescents is decreasing since 2000, the suicide rate is showing a tendency to increase in percentage.

 Although there is an opinion that adolescent suicide is a complex result arising from various causes like school and home in a broad sense, and sleeping hours and psychiatric disroders in a narrow point of view, but a wholistic and systemic research on these various risk factors is insufficient. This research aims to provide the basis of policy to prevent suicide through researching the risk factors of adolescent suicide in Korea.