有關戰後臺灣文學，一個為人所知悉的現象是魯迅風潮的出現，但是除此之外，革命元老于右任與臺灣文學實亦具有密切關係。為了深究于氏在臺文學角色，本文首先說明曾與魯迅發生筆戰的曾今可，如何協助于氏成為詩人典範；次而闡述因之牽涉的左／右翼文學典範更迭，及其與臺灣舊詩、古典文學地位升降的關連性；最後則是介紹于氏在臺倡議的詩學主張內容與文學史意義。大抵，本文藉由掘發于右任在戰後臺灣詩壇的地位，進以彰顯其為戰後臺灣文學新秩序的重構所帶來的刺激與影響作用，期盼有助深刻掌握戰後臺灣文學的生態樣貌與深層結構。其中，由曾今可與于右任兩位南社成員對於戰後臺灣詩壇的介入與經營，則或可視為中國革命著名文學團體「南社」在臺灣的精神延續的一個側面，值得細加玩味。

A well-known phenomenon of post-war Taiwan literature is the predominance of Lu Xun. In contrast, Yu Yu-jen, a revolutionary veteran who also had lots of influence on Taiwan literature, did not get due attention. This article first traces how Yu became a paragon of poetry in post-war Taiwan with the help of Tseng Jin-ko who had polemics with Lu. It also explores how the alternate emergence of modern left/right-wing literary models was related to the rise and decline of classical poetry and classical literature in Taiwan. Finally, the article elucidates Yu’s perspectives on poetry and their significance in the history of literature. Re-evaluating the importance of Yu on the poetry scene in post-war Taiwan highlighted the stimulation and impact he had brought to Taiwan literature, which was being reformed in that era. Moreover, it offers insight into the deep structure and ecology of post-war Taiwan literature. Furthermore, as members of the famous Chinese revolutionary literary group “Nan Sheh”, Tseng and Yu’s involvement and engagement in the post-war Taiwan poetry arena can be viewed as a continuation of the “Nan Sheh” spirit in Taiwan.