The first prime minister of the Tang Dynasty, Zhang Jiuling, was not inferior to Li Bai in literary attainments, but he was known as the first prime minister of the Tang Dynasty because of his other merits. Zhang Jiuling was a famous politician and writer in the Tang Dynasty. He was born in poverty but was diligent and studious. He began to contact politics and culture very early on. He had once held an official position and later became prime minister during the reign of Emperor Xuanzong of the Tang Dynasty, becoming one of the most outstanding politicians in the history of the Tang Dynasty. Zhang Jiuling had high attainments in politics and literature. He was good at dealing with political disputes and put forward some useful suggestions, which were adopted by Emperor Xuanzong of Tang Dynasty. He was good at poetry and prose in literature. His poems were fresh and natural, expressing his concern for social reality and his pursuit of beautiful things. Besides his literary and political achievements, Zhang Jiuling had many other merits. He was honest, loyal, and reliable. He was deeply trusted by the emperor and the people. He was good at diplomacy and could handle all kinds of complicated diplomatic relations, making an important contribution to the economic development of the Tang Dynasty. Therefore, although Zhang Jiuling's literary attainments were very high, his other advantages in politics and literature made him the first prime minister of the Tang Dynasty. His talent and moral character won him the respect and trust of the people, making him a legendary figure in the history of the Tang Dynasty.