This research aims to describe and analyze the origin, religious system, and religious ritual practices of Tolotang Benteng community. The type of research used is qualitative research. The research methods used were interviews, observation, and documentation. The stages of analysis were carried out by data reduction, data classification, data presentation, analysis, and conclusion drawing. The results showed that the origin of the birth of Tolotang Benteng is based on the story in the ancient lontara manuscript Mula Tatimpana Sidenreng about the ancestor of Tolotang Benteng named La Panaungi who came from the Sangalla kingdom of Tana Toraja. Tolotang Benteng comes from the word Tau which means a group of people, and Lautang which means south. While Benteng means fence. So, the meaning of Tolotang Benteng is a group of people who live in the south of the Royal Fort. Furthermore, the religious system of the Tolotang Benteng community is a school of belief, an ancestral heritage that is still maintained today. Tolotang Benteng's customs and religious activities are difficult to separate, as in practice so that Tolotang Benteng's belief is an acculturation of Bugis civilization or Toriolota belief with Islamic civilization. The pledge of the Tolotang Benteng ancestors' agreement with the King of Sidenreng La Patiroi that two things must be done in Islam, namely marriage and death. Thus, the religious ritual practices of the Tolotang Benteng community are marriage rituals, death rituals, rituals held twice a year, namely the tudang sipulung annoreng pine and tudang sipulung pattaungeng rituals, and finally the mappenre nanre ritual.