By analyzing the shortcomings of the traditional pattern of the university libraries in purchasing electronic resources which hinders the establishment of the resources-sharing platform,this article gives a deep expatiation on the advantages of the new platform for joint construction of electronic resources based on regional group purchase.

Interest Balancing Strategy of Electronic Resources Consortia Acquisition;

Consortia acquisition means to purchase certain resources by a group of libraries with least budgets,best prices,best services and most suitable resources.

In this paper, author explains the meaning of consortia acquisition of electronic information and the operating pattern of university libraries consortia acquisition.

Thinking of the costs for the consortium acquisition of digital resources;

This article summarized the practice and efficiency of the consortium acquisition for electronic resources of Henan university libraries,which guided by 6 basic principles of demand priority,parity on trial,voluntary participation,equality and mutual benefits,co-construction and sharing,support for higher vocational schools.

<Abstrcat>This paper introduces the background and develpment of consortium acquisition for electronic resources.

Generally speaking,group procurement can strengthen the power of the negotiators and earn for them a good service and favorable price but it is the coordinating cost among libraries that determines the feasibility of forming a joint procurer,which emerges as an intrinsic determinant that influences the group acquisition.