In the 21st century of post industry and information age, the social relationship is becoming loose and not based on blood ties, but on fortunes.

This essay analyses the third-line enterprises, characteristics, social behaviors and psychology etc, and foretells its developing tendency, so as to be helpful to the improvement and development of the social colonial relations between the t.

Since 1990s,the theoretical and empirical work in economic geography has experienced what might be termed a relational turn that focuses primarily on the ways in which socio-spatial relations of economic actors are intertwined with processes of economic change at various geographical scales.