<![CDATA[The Karimunjawa National Park with lowland tropical rain forest ecosystems, coastal forest ecosystems, mangrove ecosystems, seagrass ecosystems and coral reef ecosystems rich in biodiversity needs conservation in order to avoid species extinction. The purpose of this research is to know the implementation of conservation policy of preservation and sustainable use of biological natural resources and its ecosystem in the Karimunjawa National Park 2012-2016. The research was conducted by qualitative method, processing secondary data from Karimunjawa National Park and interview with key informant. The results showed conservation through preservation activities held by the management of plant and animal species along with their habitat and ecosystem recovery. While conservation through sustainable utilization activities conducted with three activities of research and development of science, education and increasing awareness of nature conservation and the utilization of environmental services with nature tourism. Implementation of conservation policy requires the support of various parties, in addition to Karimunjawa National Park Authority as the manager of the area, the participation of Jepara regency, Central Java Provincial Government, the community, NGOs, researchers, developers and tourism actors is necessary. The involvement of related parties is expected to improve the successful implementation of conservation policies for preservation and sustainable use of biological natural resources and their ecosystems.]]>
