The writing background of Li Yu's " Beauty Yu " could be traced back to the period when Li Yu ruled the Southern Tang Empire after the fall of the Northern Song Dynasty. According to legend, before Li Yu wrote this poem, he had personally experienced the battle of the Northern Song army's southern expedition and lost a large number of relatives and cities in this war. This poem described Li Yu's deep worry and longing for his country and people, expressing his helplessness and sadness towards fate. Li Yu was a famous writer and politician in Chinese history. His poems had extremely high artistic and cultural value and were known as the "first poet in history". His " Yu Meiren " was also a classic in the history of Chinese literature, known as the " crown of the Southern Tang Ci ".