Abstract: Regional library information resource sharing system is an organization system under the constraints of common agreement, to realize the co-construction and sharing of information resource, as well as the mutual reciprocity and mutual benefit of regional library. This system architecture in China, is mainly in university library and public library, which is of great significance for regional information resource sharing. However, due to the long-term influence of traditional concepts, this system has faced a series of problems, such as fund shortage and regional development imbalance. This paper attempted to propose an improved method.