This study was conducted in order to investigate the influence of adolescents’perceived parenting attitude on the depression, especially the moderating effect of perceived social support. Participants were about 200 students of vocational high school, that is located in Ansan, Gyeonggi-do. The measuring tools were Parenting Attitude Scale, which was made by Oh Sung-Sim and Lee Jong-Seung(1982), Beck Depression Inventory(BDI), which was adapted by Lee Yung-Ho, Song Jong-Yong(1991) and Social Support Scale, which was modified and standardizated by Hwang Yoon- Kyong. The collected data was analyzed with Regression analysis by the SPSS 12.0 program. The results of the study were as follows: First, parenting attitudes perceived by adolescents were related significantly to depression. Second, social supports perceived by adolescents were related significantly to depression. Third, as a result of analyzing, social support has a moderating effect on relation between parenting attitude and depression. In this study, it was found that social support was important factor to decrease adolescents’depression by finding out social support had more influence on the depression of adolescents. In other words, if sufficient social support is given from their parents, depression can be decreased although adolescents perceive negative parenting attitude.