The residents of Gili Island, better known as Oxygen Island, have an age composition with more than 40% of its residents being over 100 years old. This condition has sparked the curiosity of many researchers regarding its cause. Based on this background, an observation was conducted in the Gili area. Using several concepts from Asset-Based Community Development, it can be identified that Oksigen Island has many assets that must be developed. These assets consist of tangible and intangible objects. In contrast to previous results, which stated that the influence of clean oxygen with a level of 20.9% is what affects the longevity of the residents of Gili Island, the results of this service conclude that in addition to the beneficial oxygen levels, the determining aspect is obtained from intangible assets, namely the level of religiosity or religiousness of the island's residents which is good. The indicator can be seen from their activities, at every time the words of Tayyibah adorn their lives.