Mangrove forest is the habitat of many species organisms that have economic and ecological benefits. The economic benefits are the producer of food, drinks, medicines, building materials, and ecotourism site. The ecological benefits are the coastal protectors from tsunami, erosion, sediment trap, prevent sea water intrusion, and other coastal ecosystem buffer. Mangrove forests are unique ecosystem in tropical waters. Organisms that live in ecosystems have capacity to adapt the extrem physical-chemical environmental conditions. High productivity of mangrove vegetation makes this ecosystem the most productive ecosystem in the world in terms of its organic material production. Mangrove vegetation can produce dry organic matter from 6 to 10 tons ha-1 per year-1. This organic matters are food for detritivorous which forms the complex detritus food web. This detritus food web then becomes foof for heterotrophs at higher heterotrophs levels. There are 89 species autotroph vegetation in the mangrove ecosystem, consisting of 35 species mangrove vegetation, 5 species herbaceous, 9 species shrub, 9 species liana, 29 species epiphytes, and 2 species parasites. Organisms that live in mangrove ecosystems come from land and sea. Land organisms are bird species, reptiles, amphibians and insects. Marine organisms are various species of fish, crustaceans, and gastropods. Other heterotrophs found are wild animals are up to 12 species reptiles and amphibians, 3 species mammals and 53 species birds. Resources utilization that are not environmentally friendly causes mangrove forests degradation. This damage causes an increase sea water intrusion and inundation period. A sustainable use is needed to conserve the ecological and socio-economic benefits of mangrove forests. Silvofihery and mangrove ecotourism are two economic activities that are considered suitable to be developed to promote sustainable use mangrove forest resources.