Library as a social institute in democratic society not only symbolize the spirit of freedom of access information, but also implement the social justice by equally providing information to all. Under the spirit of universal and public service principles, library provides different information services to all users. The universal principle is to provide information resources to all people equally without status constraints and discrimination. The public principle is to help users overcoming service obstacles for increasing the efficiency of access information resources and utilities. However disable readers used library services testifies library in the implementation of universal and public principles. It suggests that librarians need to understand disable readers' information needs, and equip with skills to help disable readers to conquer environmental and service barriers. Besides, it recommends the Library Association of China to initiate a "National Information Service Policy for Disable People," according to the law of Disabilities Act of China and library service philosophy, to fulfillment the service spirits of universal and public principle.