The purpose of this study was to find out children’s perception of stress coping behaviors and to know general tendency of depression and happiness and to analyze difference according to sociodemographic variables and to see stress coping behaviors effects on children’s depression and happiness. The results of this study were as follows: Research analyses of social-demographic variables and stress coping behaviors effects on children\'s depression suggested that children’s depression appeared high when they used a little active coping behaviors and a lot of aggressive coping behaviors and they were girls. And children’s happiness appeared high when they used a lot of active coping behaviors and they perceived the high level of economy of their family and a little aggressive coping behaviors. This study found stress coping behaviors effects on children’s depression and happiness. So this study suggest basic data which give help of positive development and adjustment of children.