Hosting festival activities not only build the city’s characteristic image, but also increase the cultural sightseeing economic benefit simultaneously. However, the I-Lan international children's folklore & folkgame festival which had lasting 12 years been suspended in 2007 because of the economic loss. That made a big regret and will be worth rethinking the future development of hosting festival activities. Therefore, this article followed the viewpoints of sustainable developments to discuss the future development strategies of hosting festival activities. The proposed suggestions as: 1.integrate the policies and plans of central government, to offer more development blueprints for local places, 2.by the vision of culture geography, breaks the regional restriction of 319 towns, 3. continue utilizing the resources, 4. subsume the concept of capacity loading, 5. accumulate local cultures, active the history working group; 6. strengthen local inhabitant's participation.