Even though there is no school which is exactly based on the theory of indigenous community-based curriculum in Taiwan however indigenous community-based education is the promising policy from the context of indigenous school innovation. The aim of the case study is to explore practice of the cultural curriculum in Lan-Yu High School in Orchid Island, Taiwan, and analyzed from the perspective of community-based curriculum in order to understand the possibility and difficulty in the future development. The research began in August 2007 and ended in April 2008. The data-collecting methods are interviews and observations. The research concluded that the school successfully developed diverse traditional cultural and culture-relevant curriculum, but the long-term and deep interaction between the school and the community still needed to be developed, and the decolonial actions in the community did not constitute the decolonial educational strategies in the school. The suggestions for the future include: creating the educational vision and the opportunity of cooperation with the community, continuing developing immersion and cultural-relevant curriculum and instruction, improving teachers' multicultural literacy and the cooperation in curriculum development between elementary and high schools, and helping students understand the meanings of traditional culture through the scope of mainstream knowledge in the modern society.