This survey was emphasized on the investigation of vascular plants in the area of Dongpu-Yushan , along all pathways up to the summit of Yushan, which contains mainly five routes：(1) Tataka to Yushan, (2) Tataka to Salihsien River, (3) New Central Cross-Island Highway, (4) Shenmu Forest Road, and (5) Lele-Batungguan to Yushan. Identification and keys to taxa were made according to the collections from the area and consulting the litertures of the past. 711 species of vascular plants were identified, including 191 of pteriophyes, 11 of gymnosperms, 423 of dicotyledon and 97 of monocotyledon.