According to the investigation and appraisal of the sites such as Lion Mountain by contemporary archaeologists, human beings lived and lived here in ancient times. More than 5,000 years ago, Nan 'an ancestors lived in groups, formed clans and tribes according to blood relationship, and lived a primitive social life without private property, exploitation and class.
According to the textual research of Professor Xia Dalin's Origin of Fujian Nationalities, before history, the last branch of Mongolian Leah (yellow race) (Guyue nationality) moved from North Asia to South, and some of them stayed in southern Fujian during the migration process. During the Spring and Autumn Period and the Warring States Period, "descendants of Yue either moved to Fujian, or crossed the ocean, or lived" (General History of Taiwan Province in Lian Heng). When the adherents of Yue went south, they merged with the local aborigines and became the later Min-Yue ethnic group.
Qin Ping went to South Vietnam, "making Tusui lose 500,000 soldiers into five armies", distributed in Fujian, Guangdong, Jiangxi, Wuling and other places. "In the 500 years from the Qin Dynasty to the Western Jin Dynasty, it entered western Fujian from Gannan and then moved to Zhang Quan and other places" (Zhuang Weiwei's New Records of Jinjiang), which was integrated with the local people.
After the Western Han Dynasty and the Three Kingdoms, the Han nationality in the Central Plains continued to move south. According to Qing Qianlong's Records of Quanzhou Prefecture, the ancestor of Song Yuanfeng (1076 ~ 1085) was Chen Yi, a state inspector (Quanzhou native, unknown countryman), who was born in the Eastern Han Dynasty. In the third year of Taikang in the Western Jin Dynasty (282), due to the fact that Nandu gentry extracted more in southern Fujian, they were divided into Jian 'an County and increased into Jin 'an County. Especially after Yongjia (307 ~ 3 12), a large number of Han people in the Central Plains moved south. According to Tang Lin's "Zhong Min Ji", "Yongjia Rebellion, the four surnames of Central Plains official Lin, Huang, Chen and Zheng entered Fujian first." The Annals of Nan 'an County during the reign of Kangxi in Qing Dynasty said: "In the five chaos Jin Dynasty, eight clans fought for entry into Fujian with the same clothes, and they were the ancestors who set out from the south, namely Huang, Chen, Zheng, Zhan, Qiu, Hu and Wang. "
In the early Tang Dynasty, "spring tides are rampant" was the second year of the general chapter (669). Tang Gaozong ordered Zheng Chen to March in Lingnan and guard Minnan, and some troops were stationed in Nan 'an area, and then settled down and bought their homes until future generations. According to the genealogy of Pan Shi in Nan 'an, Pan Festival, the ancestor of Pan Shi, is one of them.
At the end of the Tang dynasty, the north was in chaos and war, and the corner of Nan 'an was peaceful. "Strange people and scholars took refuge and moved." A considerable number of them were soldiers who entered Fujian with Wang Chao from Gushi, Gwangju, Henan Province, and settled in Nan 'an Port.
At the turn of the Song Dynasty, the Northern Jin people invaded and Song Ting moved to Lin 'an (now Hangzhou, Zhejiang). Song imperial clan, officials, wealthy businessmen and a large number of Central Plains people who could not bear the ravages of the Jin people moved south one after another. Some of them also settled in Nan 'an area. In later dynasties, especially when the dynasty changed, wars and natural disasters occurred frequently, some foreigners settled in Nan 'an. The continuous integration, assimilation and reproduction of local population and foreign population is the main source of Nan 'an population.