The Philippines is culturally rich in diversity and ethnicity among indigenous peoples (IPs), embracing more than a hundred divergent ethno-linguistic groups with known specific identity, language, socio-political systems, and practices. It has always been the tangible and intangible beliefs and culture of Indigenous peoples, and the physical aspects of the environment, as well as the weather, is controlled by the spirits. The Blaan tribe is one of the authentic indigenous tribes in the Philippines and is known to possess a great cultural heritage. The profiling of the preserved cultural heritage was done through in-depth focus group discussion, audio recording, and the gathering of important cultural documents. The belief system, indigenous knowledge systems and practices, dispute settlements, traditional land resource use and management, tribal birth and healing practices, rites and ceremonies, entertainments, traditional clothing and games. In this study, the Blaan tribe from Sitio Atmurok, Bulol Salo, was able to manifest the preservation of their cultural practices and indigenous traditions. The study used a qualitative descriptive research design and a purposive sampling strategy, with data collected from elderly and representative respondents through structured interviews and focus group discussions (FGDs). During the interview, there was also a recording. The descriptive research approach was used for this study because it allowed the researcher to get first-hand knowledge of the Blaan tribe’s experiences and how they influenced their culture and religious growth. The researcher was able to give a broad overview of the B’laan Tribe’s traditional beliefs and practices in Sitio Atmurok, Bulol Salo, Kiblawan, Davao Del Sur, Philippines. Despite the introduction of various religions into the tribes, general customs, notably belief systems, have been preserved. This research would be recommended to the National Commission on Indigenous Peoples so that they may witness the beauty of general customs, especially belief systems that have survived despite the absorption of other faiths into the tribes.