This study aims to examine the moderating effects of father’s parenting behavior on the effects of mother depression on child problem behavior. The study sample was 1466 elementary schools first graders (740 boys, 706 girls) who had participated in the eighth wave of the Panel Study on Korean Children (PSKC). For this, it carried out questionnaires, which was composed of mother depression scale, child behavior checklist and father parenting behavior scale. The data were analyzed using Pearson’s correlations and regression analysis with SPSS 18.0. The results are as follows. First, mother’s depression and father’s parenting behavior had a significant correlation on child problem behavior. Second, mother’s depression is predicting variables for child problem behavior. Third, father’s strict parenting behavior had moderating effects in mother’s depression on child problem behavior. These results add to a better understanding of the mechanism linking mother depression and father parenting behavior on children’s problem behavior. These findings can serve as an important contribution to future research and practices for reducing children’s problem behavior.