Libraries have continued to grow as cultural needs improve. In the construction of public space, large libraries serve as city landmarks with diverse categories and perfect functions for the public. Local libraries in small cities are often more accessible to the public, but due to slower technological development and a lack of conceptual updates in these cities, there are still some deficiencies in the construction of public spaces at this level. Therefore, improvements and upgrades are needed to address these issues. This article proposes the characteristics of a high-quality library public space and discusses the ecological and functional features of excellent public libraries. Jiayu County Library in Xianning, Hubei Province, China serves as an example of the perfect space development, complete with a superior environment and functionalities. Targeted use of pertinent enhancement techniques is advised to raise the standard of the library's public areas and support the growth of cultural construction.