Hakka is one of the Han nationality. Literally speaking, Hakkas refer to foreign residents, and in ancient times, they were the names of all Hakkas and Han people. Hakka dialect originated from the guest-giving system in the Eastern Jin, Southern and Northern Dynasties and the guest-giving system in the Tang and Song Dynasties.

Hakka ancestors began in the period of the integration of Lingnan and Baiyue in Qin Zheng. The Han nationality who moved southward gradually in the Song Dynasty formed a Hakka clan on the Sanjiang Plain. Under the impact of Ganjiang, Tingjiang and Meijiang, it developed into the main Hakka settlements such as Ganzhou, Tingzhou (now Longyan and Sanming), Meizhou, Heyuan, Huizhou, Shaoguan and Shenzhen.

Hakka clans were formed later than the southern Han nationality, and they were not formed in the same administrative region, but in the border areas of the three provinces. In these areas, in addition to the indigenous people, there are outsiders such as Shanke, Muke and Shek. They lived in the same place as the later Hanke, and they merged for a long time, which gave birth to a group with unique language and cultural characteristics. These people are called guests, customers and Hakkas by local owners.

Hakka is not only the appellation of Han nationality, but also a cultural concept. Hakka culture is known as the living fossil of ancient culture in China, and Hakka dialect 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 ancient Chinese words, such as "You, I, He is Er, Wu and its ancient pronunciation" in Hakka pronunciation. Hakkas is a prominent school in the world today? . By 20 17, there will be three national Hakka cultural and ecological protection experimental zones.