Romance of the North and the South is one of the series of popular romances of China created by Cai Dongfan. This book describes the historical facts from division to confrontation to reunification during the Southern and Northern Dynasties 170 years. It is a popular historical classic with plain views, rich contents, sufficient arguments, elegant language, self-evaluation and self-annotation, which is both reasonable and interesting. The book is well-selected, with history as the main part and unofficial history as the supplement, which can give people an introduction to national history. The Romance of the North and the South is one of the series of long historical novels written by Cai under the guidance of the idea of "saving the country through romance" in the Republic of China. It describes the historical facts of the Southern and Northern Dynasties 170 years from division to confrontation to reunification. It is a classic of popular history with plain views, rich contents, sufficient arguments, elegant language, self-evaluation and self-annotation. Since the Han and Jin Dynasties, foreigners gradually came to China and lived in the mainland. Heir is five Hu sixteen countries, overlapping for the rise and fall. Later, the law of the jungle, he swallowed this, pushed it around, and then merged the sixteen languages into a big country, called the Northern Wei Dynasty. Later, the Northern Wei Dynasty was divided into two parts, so Jiangnan remained. And the Eastern Wei Dynasty changed to the Northern Qi Dynasty and the Western Wei Dynasty changed to the Northern Zhou Dynasty. The western soil is divided into three parts, Zhou is the strongest, Qi is the second, and Jiangnan is the weakest. For several years, Ding Zhi became Zhou He, but Jiangnan kept two-tenths of it almost belonging to the Northern Zhou Dynasty. Emperor Wendi of Sui Dynasty, a great prime minister, usurped Zhou Shi and merged into Jiangnan. Zhou Chan and Chen unified the Central Plains and merged the North and the South.