As early as when the Qing army entered the customs, there was a mass slaughter of stubborn people in Jiangnan, so the anti-Qing sentiment in Jiangnan was extremely high. Since Kangxi, the rulers of the Qing Dynasty have adopted various methods, such as setting up a department of erudition and poetry, recruiting adherents of the Ming Dynasty to compile the history of the Ming Dynasty, and so on, in an effort to win over the literati of previous dynasties, especially those in the south of the Yangtze River. Emperor Kangxi made six southern tours. Imitating my grandfather's Qianlong wholeheartedly, I also made six southern tours. Like my grandfather Kangxi, the first two tours ended in Hangzhou, Zhejiang Province, and I also climbed Huiji Mountain in Shaoxing to worship Yuling, in order to show off my national strength, appease the people in the south of the Yangtze River and inspect the Qiantang River seawall project, which was expensive.

Jiangnan mainly refers to the Yangtze River Delta, especially from the south of the Yangtze River to the mouth of Qiantang River in Jiangsu and Zhejiang provinces, plus the core areas in Yangzhou, Jiangsu and Zhejiang provinces, sometimes including southeastern Anhui and northeastern Jiangxi. Jiangning house, Suzhou, Yangzhou and Hangzhou were the most prosperous places in the early and middle Qing Dynasty.

Wuyue, which was called in ancient times, is one of the important birthplaces of Chinese civilization. Although the territory and population of Jiangsu and Zhejiang are not large, accounting for only 2% of the land area and total population, it has been a famous land of plenty since ancient times, and its economy and humanities occupy a very important position in the country. In the Qing Dynasty, the two provinces paid 20.8% of the total silver and about 30% of the total grain respectively. Salt silver accounts for about 68% of the total salt silver, and tariffs account for half of the total tax revenue. Silk and tea produced here have always been high-grade necessities inside and outside the court, and the diet can be regarded as authentic in the court food of Ming and Qing Dynasties. A considerable proportion of Yangzhou Suzhou recipes are still preserved in state banquets.

Jiangsu and Zhejiang are the most culturally developed areas in China. There are many talents and scholars here, many times more than other provinces. As far as the imperial examinations related to the political situation and academic and cultural circles are concerned, during the 150 years from the third year of Shunzhi to the sixty years of Qianlong, a total of 6 1 subjects were held, among which Jiangsu and Zhejiang provinces produced 5 1 subjects, accounting for 87% of the total number of top scholars in the country; Out of the 38 second place, accounting for 62% of the total number of second places; 47 species of flowers were excavated, accounting for 77% of the total number of flowers excavated. As far as Jiuqing magistrate is concerned, there are many college students and magistrates in Shangshu in Jiangsu and Zhejiang provinces, such as, Xu, and so on. On the other hand, Jiangsu and Zhejiang were the center of the activities of adherents in the late Ming Dynasty, and anti-Qing thoughts and words and deeds continued, resulting in many literary inquisitions. Without the huge financial revenue in Jiangsu and Zhejiang provinces and the support of gentry, the rule of the Qing Dynasty would be difficult to consolidate. Firmly controlling Jiangsu and Zhejiang provinces and making full use of their financial, human and material resources to develop their "prosperous times" are the fundamental reasons for going to the south of the Yangtze River for six times.