Qingmuchuan tells that Qingmuchuan Town belongs to ningqiang county, Hanzhong City, Shaanxi Province. It was formed in the Ming Dynasty, shaped in the middle and late Qing Dynasty and flourished in the Republic of China. It is the westernmost town in Shaanxi Province. Qingmuchuan is bordered by Qingchuan County, Sichuan Province in the west, Wudu County and Kangxian County, Gansu Province in the north, and Shaanxi, Gansu and Sichuan provinces are at this junction, so it is known as "three provinces with one foot" and "three provinces with crowing". Qingmuchuan is also related to Ye Guangqin's temporary post in Zhouzhi.

She paid attention to Wei when she studied the history of bandits in the Republic of China to write Old County. She visited Qingmuchuan many times, and the information was solid and comprehensive, which not only accumulated material for the novel, but also arranged and preserved the local history and culture. Past lives of Aoki Chuan is touching her heart. At the provincial people's congress, she put forward a proposal to protect and develop Qingmuchuan, which is no longer a simple writer's concern.