In the tenth year of Tianbao (75 1), Jiaxing County, Haiyan County and Kunshan County were established. It belongs to Suzhou and Wu Jun. From the Yuan Dynasty to the fourteenth year of the Yuan Dynasty (1277), Huating County was promoted to Huating House, and the following year it was changed to Songjiang House. In the 27th year of Zhiyuan (1290), Huating County broke away from Shanghai County. In the twenty-first year of Jiajing in Ming Dynasty (1542), Huating County and Shanghai County were divided into Qingpu County. During the Qing Dynasty, it was the seat of Songjiang Prefecture in Jiangsu Province. 19 12 Louxian was abandoned as Huating, 19 14 Huating County was changed to Songjiang County.