根据罗香林教授在《客家源流考》中考证,客家先民南迁分五个时期。他的结论是“始于东晋”;而且断言,东晋以前入粤的汉人,决非民系源流的交涉。台、港一些专家、教授,对此结论提出异议,认为汉族中的客家人,由中原大批南迁是始于秦。 According to Professor Luo Xianglin “Hakka origin flow test” research, Hakka ancestors moved south divided into five periods. His conclusion was “beginning with the Eastern Jin Dynasty.” He also asserted that the Han people who entered Guangdong before the Eastern Jin Dynasty were by no means the origins of the people’s court. Some experts and professors in Taiwan and Hong Kong disagreed on this conclusion. They think that a large number of Hakka people in the Han people moved southwards from the Central Plains to Qin.