This article provides a brief introduction on two of National Taiwan University Library's digital projects: Kua-á tsheh and Liām-kua Digital Archives, and focuses on how they have been executed and applied over the years. Kua-á tsheh is a type of publication that transcribes folklores in prose. It is an important research material that can be used to understand the linguistics, folk literature, along with social and cultural anthropology of early Taiwan. Liām-kua is how those folklores in Kua-á tsheh are performed by entertainers, who can be regarded as combining the roles of bards and musicians roaming the country side. In short, Kua-á tsheh Digital Archive is a traditional digital library project which focuses on digitalizing our book collections, while Liām-kua Digital Archive tries to introduce this specific subject collection through different methods with the hope of preserving traditional performing arts.