It is not easy for people in remote areas to get knowledge and information. The main reason is that they live in remoter areas and transportation is inconvenient. The development in remote areas is obstructed; therefore, knowledge diffusion in remote areas is relatively important. This study uses a case study method to explore the knowledge diffusion in Taiho Community. The results have shown that the knowledge diffusion in this community is affected by the outer support and the involvement of leaders, and then the implement of project is affected. Residents’ participations and the knowledge diffusion in this community are affected by residents’ common goals or perspectives, industry characteristics and working schedules, knowledge and participation motives, the involvement of curriculum planning, and cohesion among residents. Learning abilities are also affected by levels of education and age, and then the knowledge diffusion in this community is affected.