"Back to Hometown" is a recurring theme in Taiwan's modern poetry. This writing theme went back to 1987, when Taiwan's poets finally returned to Mainland China after forty years of separation between Mainland and Taiwan. Meanwhile, they travelled in the places of interest for seeking cultural root. This paper studies the poetry of Yu Guangzhong, Xi Murong and Zheng Chouyu, who expressed their homesickness and a sense of national identity during their trips to the Great Wall