The relationship between the library culture and the library core competitiveness, which is a kind of dialectical relation, can be roughly summarized as interacting with each other, interdependence and promoting with each other. Base on the analysis of the relationships, we should enrich and innovate library material culture, institutional culture and spiritual culture in order to improve the core competitiveness the library. To make the library culture and library core competitiveness influence each other and develop together with a sustained growth.