Tongkonan, for the people of Tana Toraja, is a source of reference for religious peace with the values of siangga, sikamali, sipakaborok, and sialamase. The noble values in Tongkonan are also noble values in Islamic education, so it can be said that there has been a merger of positive values in the climate of religious harmony and tolerance among the indigenous people of Tana Toraja so that religious resilience can reduce tension and opportunities for religious violence. This research uses a qualitative ethnographic approach. The data sources for this research are officials of the Ministry of Religious Affairs, the Head of Madrasah, the Sub-District Head, and Toraja Traditional Guardians. Furthermore, the data collection methods are observation, interviews, documentation, and reference searches. Then, data processing and analysis techniques are carried out through three stages: data reduction, data presentation, and conclusion drawing. The results of this study are that the government and related partners from community organisations should: 1) improve the quality of formal education through schools and madrasahs with a curriculum loaded with religious harmony and tolerance. 2) Increase the role of Islamic education in fostering harmony by stimulating a culture of harmony and tolerance among students and the Islamic community in Tana Toraja as an object of non-formal education. 3) Strengthening the role of Tongkonan as a medium for learning religious harmony and tolerance in the Toraja community through training