In order to support research and teaching activities of the NCU community by obtaining literature not available at the Library from other sources.The interlibrary loan service provides circulation service for books and non-circulation service for technical papers, patents, and technical reports Reciprocal borrowing arrangements have been established with many domestic and foreign document service institutions, including The Hong Kong University Library, Tsinghua University Library, Peking University Library, Shanghai Jiaotong University Library, Xi'an Jiaotong University Library, Wuhan University Library, Xiamen University library, the National library, Shanghai library, the National Science and Technology Library (NSTL).