There is no administrative subordinate relationship between Siming District Library and Municipal Library. At present, two-level libraries in urban areas have realized universal library card, book lending and returning, document joint cataloging, digital resource sharing and interactive reader activities. A public library joint service network with Xiamen Library as the center, libraries in all districts as the backbone, and town (street) and village (residential) libraries as the nodes. The children's stacks should be in the children's library.