Since the Qin Dynasty, a large number of Han people in the war-torn Central Plains moved to the south on a large scale and arrived in Meizhou and other places through southern Jiangxi and western Fujian. They always lived in other places as foreigners, and were influenced by the local hilly environment and local folk customs, and gradually formed a unique Hakka culture.
Hakka is not only a appellation of Han nationality, but also a concept at the cultural level. Hakka culture is known as the living fossil of ancient Chinese culture, and Hakka language is the living fossil of ancient Chinese, which can correspond to the pronunciations recorded in ancient rhymes such as Qieyun, Tangyun, Guang Yun and Jiyun, and retain a large number of classical Chinese words, such as "You, I, He is Er, Wu and its ancient pronunciation" in Hakka pronunciation. Hakka studies is a prominent school in the world today. By 20 17, there were three national experimental areas for Hakka cultural and ecological protection.
The four Hakka States are Huizhou, Meizhou, Ganzhou and Tingzhou. Shek Pik in Ninghua, Fujian Province is the center of the formation of Hakka clan, which is called Hakka ancestral land. Meizhou is called the world's guest capital because it is the main ancestral home of overseas Hakka overseas Chinese. Ganzhou is closely related to the formation of Hakka clan, and is called the cradle of Hakka. Shaoguan is the main successor of the famous Hakka fifth state in the world.