This study examined the effects of victim's facial expression and intentionality on interventions. Participants were 50 undergraduate students. Almost of them had selected occupations as child-care worker after graduation. The experimental design was victim's facial expression (2 : positive, negative) × intentionality (2 : intentional, accidental). Results showed that they encouraged the perpetrator to apologize to the victim who expressed negative emotion, than one expressing positive emotion. They considered the perpetrator feeling guilty higher in a situation that he or she had hurt the victim intentionally and the victim expressed negative emotion. Additionally they encouraged the perpetrator to apologize sincerely than instrumentally in negative expression-accidental situation, and to apologize instrumentally than sincerely in positive expression-intentional situation.