Using Diaspora as a theoretical framework, this article investigates the historical trajectory of Hong Kong im-migrant access to Africa, the evolution of their diaspora as well as living strategies. Based on data collected from 10 Hong Kong immigrants during 2018-2019 in Africa, and assessment of some historical materials such as Sino-Africa political relationships, its change trajectory, trade record, and personnel exchanges, the results demonstrate that the different Hong Kong political system might lead to the entrepreneurial resource obtains and the evolution trends of the diaspora of Hong Kong immigrants. Since the 1980s, the increase of re-export trade volume between Mainland China and Hong Kong had strengthened the trade volume between Hong Kong and Africa with the development of the Sino-Africa relationship. It illustrates that the trade relations between Hong Kong and Africa have been increasingly influenced by the re-export trade between Hong Kong and mainland China. Meanwhile, the Hong Kong immigrants in Africa have gradually been showing a trend of integration with new Chinese immigrants in Africa, which navigated their identities constantly i.e., Hong Kong diaspora, Chinese ethnic group and British citizenship (overseas), while their daily life was inclined towards cosmopolitan trends.