This expo facto study aims to see the effect of gadget use and parental involvement on children's prosocial behavior with a sample of 80 parents of children. This research was conducted with data collection techniques used in the study using a questionnaire on each variable X1, X2 and Y. In the X1 variable (gadget use) while the X2 variable (parental involvement) and for the Y variable (prosocial behavior). The data analysis technique in this research is quantitative data analysis. The results show that the overall level of prosocial behavior using low gadgets (A2) is higher than high gadget use (A1), there is an interaction between gadget use and parental involvement on children's prosocial behavior, there are differences in the level of prosocial behavior using low gadgets (A2) parental involvement high (B1) higher than prosocial behavior of high gadget use (A1) high parental involvement (B1), there is a difference in the level of prosocial behavior of low gadget use (A2) high parental involvement (B1) Higher than prosocial behavior of low gadget use (A2) low parental involvement (B1