SUMMARY
This research discusses the compensation costs of mining activities in protected forests in order to seek compensation costs optimal because hilangngnya ecosystem functiont. The survei method was using on applying qualitative approach for the research with The utilization of protected forests for coal mining activities brought the consequences for the sustainability of protected forest ecosystem function that has the main function as a buffer system protection of life. The cost of compensation is required to consider the social aspects, economic and ecological over the utilization of the forest area for mining activities. The results of this study suggested the imposition of compensation costs of coal mining companies over the damage the ecosystem. The use of the cost of compensation, priority is given to the community around the mine and restoration (restoration) ecosystem.Conclude that The cost of negative eksternalitas as compensation costs based on the existence of extracting SDA (coal), the damage of protected forest along with the functions of the environment (project boundaries) and economic losses on Watersheds and coastal (ecological limit), Internalisasi negative eksternalitas costs in the cost of mining production as compensation costs have not been considered the elements of the natural sunberdaya depletion and environmental degradation.