Immigration is not only the historical driving force for China's unified multi-ethnic country development,but also one of the important ways to promote ethnic exchanges and integration.The third-line construction and a large number of"third-line immigrants"produced by the third-line construction not only expand the space of ethnic interaction,but also enrich the elements of ethnic integration,and profoundly affect the communication and integration of ethnic groups in China's ethnic areas.It is manifested in five aspects:population structure,social development,living conditions,cultural form and national identity.Examine the characteristics of the three-line construction to promote ethnic integration and intermingling,mainly including national policy dominance,economic factors,prominent hierarchical interaction and group involvement.To analyze the correlation between the three-line construction and ethnic blending,and to explore the connotation,characteristics and rules of historical immigration,is a useful attempt to construct the"Chinese experience"of the monility and integration of ethnic populations in the new era.
historical immigrantsethnic integration and interminglingthird-line constructionthird-line migrants