In the pre-Qin period, the Chua family mainly developed and multiplied in present-day Henan and Anhui, and some people went abroad to be officials and stayed in the local area. During the Warring States Period, Cai Ze once replaced Fan Ju as the prime minister of Qin and just became the monarch. In addition, there is a doctor named Cai Chao in Qi, Cai Jiuju in Chu and Cai Mo in Jin. In the Han Dynasty, Cai lived in Jiangsu and Zhejiang today, such as Cai in the Western Han Dynasty (now Pei County, Jiangsu). At the same time, during the Eastern Han Dynasty, Liu Chen left Cai Yong, and Shangyu (now Zhejiang) also had a Cai Yong who was famous for his filial piety. However, Henan is still the main settlement of the Cai family. Before the Northern and Southern Dynasties, it was always the center of development and reproduction of Cai family. Liu Chen County was located in Jiyang County (located in the northeast of lankao county, Henan Province) and belonged to Jiyang in the Western Jin Dynasty, so it was listed as "Jiyang" among the hundreds of surnames. At the end of Han Dynasty, Cai Yong was appointed as the satrap of Wuyuan (now northwest of Baotou City, Inner Mongolia) and settled in the local area. His descendants lived in Shuofang (now northwest of Hangjinqi, Inner Mongolia). Later, people surnamed Cai moved to Ningxia and Gansu.
During the Jin Dynasty, some members of the Cai family traveled south with the gentry of the Central Plains and lived in Jiangsu and Zhejiang provinces. Cai immigrated to Fujian and Guangdong in the early Tang Dynasty. At the end of the Tang Dynasty, there was a war in the Central Plains, and some members of the Chua family in Henan entered Fujian with Wang Chao and Wang. They first lived in Ninghua County, Fujian Province, and then moved to Meizhou City, Guangdong Province. At the end of the Ming Dynasty, Taiwan Province Province was recovered, and then Cai's men left Taiwan Province Province for reclamation. Since then, a large number of Chua's people have moved to Taiwan Province Province from Fujian and Guangdong, and some have moved to Southeast Asia, Europe and America.
There are many famous people named Cai in history. Cai Lun, a native of Guiyang (now Chenzhou, Hunan Province) in the Eastern Han Dynasty, summed up the experience of papermaking with hemp fiber since the Western Han Dynasty and improved papermaking. Later, he was called the inventor of papermaking in China. Cai Yong, a writer and calligrapher in the Eastern Han Dynasty, studied classics, temperament, astronomy and calligraphy. His daughter Cai Yan, named Wenxi, is knowledgeable, good at poetry and proficient in temperament. She has sorrowful poems, as well as Hu Jian's Eighteen Beats. Cai Bin, a painter in Southern Dynasties and Song Dynasty, was good at drawing figures, so he was the best in the world. Most of the Cai celebrities in Song Dynasty came from Fujian, such as Cai Xiang, a calligrapher in Northern Song Dynasty, and Cai Jing, a great teacher, all of whom were Xianyou people in Xinghua. Cai Shen, a lawyer, philosopher and scholar in the Southern Song Dynasty, were all from Jianyang (now Fujian). There were writers Cai Songnian and Cai Jue in Jin Dynasty. Cai Wu IX, the leader of Jiangxi peasant uprising, was in the Yuan Dynasty. In the Ming Dynasty, there was Cai, the leader of Sichuan peasant uprising. There was a painter named Cai in Qing Dynasty. In modern times, Cai's talents came forth in large numbers, mainly educator Cai Yuanpei; Military strategist and old democratic revolutionary Cai E; Brothers and sisters of proletarian revolutionaries Cai Hesen and Cai Chang; Cai Tingkai, a famous anti-Japanese warrior and vice chairman of Chinese People's Political Consultative Conference; Film director Cai Chusheng, etc. Therefore, Chua Meier has made positive contributions to the civilization and progress of China.
At present, according to population, Cai's surname ranks 44th in China.