This article, by adopting the case of Lunpi tribe with reference to the experiences of the Makao National Park scheme and the Wu-Wei-Kang Wildlife Refuge, aims to explore the opportunitites and challenges of developping a co-management mechanism in the Natural Protected Area based on the Forestry Act. The result shows it is that the concrete support of the authority to the local communities and as well as its willingness on to empowering local communities them that are the key to build up the co-managed managment mechanism, while it is important to have complementary legislation, and cohesion and common grounds in the local communities. Among others, the mutual trust between the government and the local communities forms the basis of co-management. Including the local communities in protected area monitoring is found helpful for building mutual trust needed. In addition, the facilitatior can play a positive role in improving communication. Generally, a legislative niche for implementing co-management mechanism in the Natural Protected Area is provided with the Forest Act. It, however, depends on the commitment of the governmental authority to put it into effect.