In recent years, the American Library Association (ALA) and the National Information Standards Association (NISO)have formulated many privacy management standards and policies for public libraries. In accordance with the policies of ALA and NISO, all States in the United States have also formulated privacy management standards for public libraries. These management norms are mainly used to solve the problems such as the scope of privacy protection of public libraries, the restrictions on the disclosure of personal information, and the punishment measures for violating privacy. China's public libraries can refer to the experience of the United States and combined with the current situation of privacy protection of Public Libraries in China, further improve the legal system of privacy protection of public libraries, clarify the protection scope of readers' private data, improve the management mechanism of private data, clarify the treatment and relief measures of privacy leakage, and improve the professional quality of public librarians, Construct the internal control mechanism of Public Library privacy management.