Zhang Jiuling (678 - 742) was a Tang Dynasty writer and politician. He was born into a bureaucrat family and was demoted after offending eunuchs. Zhang Jiuling's literature advocated taking the natural scenery as the center, opposing the decoration and adornment, and advocated true feelings and natural fluency. His poems were fresh, bright, and sincere, deeply loved by later generations. Zhang Jiuling's masterpieces included "Looking at the Moon and Huaiyuan" and "Looking at the Waterfall of Mount Lu". "Looking at the Moon and Huaiyuan" was a famous landscape idyllic poem that expressed the poet's comfortable mood of staying away from the hustle and bustle of the world and living in seclusion in the countryside by describing the feeling of looking at the moon. The concise language of this poem had a profound artistic conception and was hailed as one of the representative works of the Tang Dynasty's landscape idyllic poems. In addition, Zhang Jiuling had also served as a prime minister, one of the representatives of the "peaceful era" because of his talent and integrity. His life and works were full of legendary colors, which had an important impact on the development and influence of Chinese literature.