The purpose of this study was to clarify the effect of the modernity of mothers and children\'s misbehavior on parenting stress of mothers. The subjects of this study was 210 mothers who lived in Korea. The results of this study were as follows: First, No significant statistical difference was found on the parental modernity of mothers by children\'s sex. Second, No significant statistical difference was found on parenting stress of mothers by the level of education of mothers but significant statistical difference was found on parenting stress by the level of parental modernity. Third, the more mothers had the level of education, the more mothers had parental modernity. Fourth, more children had misbehavior, the more mothers had parenting stress, Fifth, the more mothers had the parental modernity, the less mothers had parenting stress.
These results suggest that the parenting stress was effected by both parenting modernity and children\'s misbehavior but also it was much relevant to children\'s misbehavior than parenting modernity.