Comparing the foreign capital ultilizing and external investment in a present view would help more clearly recognizing the in-and-out capital flow with its dedications, roles, etc. The authors in sequence analyzed the motives, the structures, the benefits, and the styles of the two kind of capital flow. And in every part, they explained between them the intrinsic connection on which that a best conjunction point should be considered for the better development of economy was put forward. Comparing the foreign capital ultilizing and external investment in a present view would help more clearly recognizing the in-and-out capital flow with its dedications, roles, etc. The authors in sequence analyzed the motives, the structures, the benefits, and the styles of the two kind of capital flow. And in every part, they explained between them the intrinsic connection on which that a best conjunction point should be considered for the better development of economy was put forward.