Abstrak
In minangkabau may not only be a custom that applies to nagari's salingka. But each one highlights its own nazirite. as if to compete with the other, one is osong kapali's custom. Osong Kapali is a tradtitional ceremony performed The Sungai Patai Community, Sungayang District, Tanah Datar District when a Datuak dies. The traditional osong kapali ceremony has been carried out from generation to generation and is still being carried out with the aims of respecting the services of deceased. This study uses qualitative methods with data collection instrumens in the from of observasion, interviews and dicumentasioan. As for the result of this study are Datuak or niniak mamak is a traditional officer in Minangkabau. For the people of sungai patai, the greatness of a datuak is not only reflected in the title ceremony but also when a datuak dies. This osong kapali traditional ceremony aims to honor a dead datuak, the traditional ceremony of osong kapali begins with baretong, mangaji adaik, mancabiakan kain kafan, osong kapali, pemasangan kain adaik, maracoak, pidato alam, manigo ari. In the traditional ceremony of osong kapali, there are values such as the greatest of leader, the wisdom of a datuak and the symbols of a broad and clean thought this reflected in the black umbrella, samiri cloth and the white “deta”. This osong kapali traditional ceremony is combination of custum and religion reflected from the ceremonial sequences and this has been suitable with the ideology “based on Al-quran”