Madagascar is well known for its unique and rare natural beauty, and it is one of the biodiversity hotspots for conservation priorities. Many efforts have been made for the protection of biodiversity, yet initiatives towards the conservation of geodiversity are often neglected. eoconservation refers to the conservation of geological diversity or geodiversity, and it is often applied to a specific location, known as a geosite, where important earth features (geological, paleontological, geomorphological, hydrological and pedological) are protected, preserved and managed. Madagascar is very rich in natural resources and has many spectacular geological features, such as the beautiful gorges and canyons of Isalo, Tsingy de Bemaraha, Ankarana caves, hot springs and volcanic lakes of Itasy, all of which should be conserved and protected by local authorities, the private sector and local communities. Such initiatives can not only help to maintain and protect geological sites of particular importance, but also contribute to sustainable economic development. This essay aims to introduce geoconservation and sustainability in Madagascar, and to increase public knowledge and awareness of geodiversity and its conservation. The creation of geological tourism sites or geoparks is undoubtedly one of the most important steps to promote the conservation of geosites, and the promotion of earth science education should help expand and consolidate their protection.