This research discusses the role of Christian religious education teachers and parents in preventing the negative impact of technological developments on children. The impact of technological developments is very significant both internally and externally. This is a reality that every human being needs to face. Therefore there needs to be a strategy in dealing with these technological developments. The purpose of this study is to explain the role of Christian religious teachers and parents in preventing the negative impacts of technological developments on children. The method used is descriptive qualitative method which focuses on collecting data through books, articles and relevant sources. As a result of this study, it was found that the role of Christian religious teachers and parents in preventing the negative impacts of technological developments on children is Christian religious education teachers providing education about technological developments for children at school, together with parents providing supervision of children's activities and relationships, providing activities positive for children both at school and outside of school, giving confidence to children through giving assignments. As a conclusion from this research, it is very necessary for Christian religion teachers and parents to provide education about the negative impacts of these technological developments. This prevention effort is a form of anticipation from teachers and parents so that their students are not negatively affected by these technological developments.