Parents are the first and foremost educators for the formation of children's behavior, but actually there are acts of violence and deviant behavior of parents in educating children in Banda Aceh City, this is not in accordance with the values of the educational trilogy initiated by Ki Hajar Dewantara and educational goals. namely, among others, so that children have noble morals and the duties of parents who act as first and foremost educators for the formation of children's behavior. This study is to get a scientific answer to how the actualization of educational trilogy values is applied by parents in educating children in the city of Banda Aceh. The author uses secondary data, data from field research. The sampling technique for the object under study consisted of the parents of the father / mother who had children with the "Simple Random Sampling" technique (simple random sampling). Data collection techniques using literature study, questionnaires and observations. The data analysis technique used to answer the problem formulation and to test the hypothesis is to use a quantitative form of description through the Means test (Average). The results of the hypothesis study show that: 1) actually the values of the education trilogy (with means and categories), namely, parental exemplary (73.3, high), teaching to worship (33.01, high), parental care for children (28.44, high), the responsibility of parents to children (25.97, high), direction to kindness (29.64, moderate) have been implemented by parents in educating children; Therefore, the authors conclude that this study is a new approach to see actually the values of the educational trilogy that Ki Hajar Dewantara has applied by parents in educating children in families in Banda Aceh City.