This study, as primary research that examines the communication characteristics of the library and the perception of librarians in order to make public libraries a communication space, surveyed the perception of librarians in public libraries and made an attempt to devise activation measures for the communication spaces of the library. As a result, the communication characteristics of the library were derived to be locality, community spirit, and interactivity. In addition, the perception survey found that librarians have positive remarks about the communication spaces of the library. As it shows a high degree of awareness, the library should focus on ways to revitalize communication. First, the direction of communication must be set in order to fulfill library's new role in communication and exchange. Second, it is desirable for the library to free itself from being a quiet space and recreate it as a space for communication. Third, the library needs to exchange and connect with organizations, groups, and gatherings of the community. Fourth, it seems necessary for the library to provide support for the users' independent and voluntary communication and operation of the community.