This article is to discuss the two approaches to collect, research the Taiwan folklore. Those nationalism intelligent, like Huan-Joe (黃周), Lai Ho (賴和), Lee Shying-Chiang (李獻璋) took the folklore literature as the inherit of national culture. They took the balled, fairytale as the poetry of nation, reflected the nationality of Taiwanese. On the other hand, the left-winged intelligent influenced by Marxism like Mo-Li (茉莉), Lin Ka-Fu (林克夫) took the folklore as the upper economic structure, and effected by the manufacture production, reflected the class ideology. The national intelligent accepted the folklore without questions; the left-winged intelligent thought the folklore could not beyond the class ideology.