Bai Juyi was the secretariat of Hangzhou for two years, and later he was the secretariat of Suzhou for more than a year. When he was young, he roamed the south of the Yangtze River and lived in Suzhou and Hangzhou. He knew Jiangnan like the back of his hand, so he was deeply impressed. When he returned to Luoyang for more than ten years after retiring from Suzhou, he wrote these three "Memories of Jiangnan".
The specific time of writing lyrics has always been different, but there is no basis. Liu Yuxi once wrote several poems "Recalling Jiangnan" and sang them with Bai Juyi. In the preface, it is said that "He Letian's Spring Poetry is a sentence titled" Recalling Jiangnan "." This word was written in Luoyang in the early summer of the second year of Tang Wenzong (837), so it can be inferred that these three words of Bai Juyi should also be written in the early summer of the second year.