Purpose: The present study is a descriptive cross-sectional study of cause-and-effect relationship, which used the 7th year data of the PanelStudy on Korean Children, to investigate the effects of parenting stress, depression, and family interactions of the parents of early school-agechildren on children’s subjective happiness. Methods: The present study included data of 1419 pairs of parents who participated in the motherand father survey of the Panel Study on Korean Children. The effects of parenting stress, depression, and parental family interactions on children’ssubjective happiness were analyzed as actor and partner effects using path analysis. Results: Parenting stress had an actor effect on depression;maternal parenting stress (β=-.21, pqqqlt;.001) and depression (β=-.30, pqqqlt;.001) had an actor effect on maternal family interaction; andpaternal parenting stress (β=-.18, pqqqlt;.001) and depression (β=-.17, pqqqlt;.001) had a partner effect on maternal family interaction. Paternal parentingstress was found to have an actor effect on paternal family interaction (β=-.30, pqqqlt;.001), and parental depression was found to have actoreffect (β=-.23, pqqqlt;.001) and maternal depression had a partner effect on paternal family interactions (β=-.22, pqqqlt;.001). Children’s subjective happinesswas found to have a statistically significant relationship with maternal family interaction (β=.40, pqqqlt;.001). Conclusion: The significance ofthe study is in its provision of basic data for adjusting parents’ family interactions that are closely related to the growth and development of childrenby confirming the effect of parents’ parenting stress, depression, and family interaction on children’s subjective happiness.