Diarrhea is still the second highest cause of the death in children under five in the world. Innovation programs continue to be sought to reduce the number of child death due to diarrhea and help diarrhea prevention in Indonesia. This study aimed to examine the effectiveness of educational games called as Arbi Care on diarrhea prevention towards the knowledge of healthy behavior among preschoolers. This study used pre-post test control
group design involving 120 participants whom fit the inclusion criteria. Participants were andomly divided into a control group of 60 participants and the intervention group consists of 60 participants. Data were analyzed using one-way MANOVA test. The results showed there were significant mean differences in knowledge of healthy behavior to prevent diarrhea between control group and intervention group. There was also a different increased inclination of mean score which is intervention group score higher than control group. Arbi Care is
effective in improving the knowledge of healthy behavior to prevent diarrhea among preschoolers. Thus, Arbi Care is recommended to be the model to help prevent diarrhea in children using educational game
