1. The National Library of Mauritius is mandated by law to collect, organize, disseminate and preserve for posterity the cultural print and non-print heritage of Mauritius to support research, scholarship and creativity.
2. The National Library will provide a reliable library and information service of high quality and with professionalism and efficiency to meet the needs and requirements of all its users.
3. The Management Team will show leadership and commitment and bear responsibility for establishing, implementing, integrating and maintaining the Quality Management System (QMS).
4. The Management Team will continually improve the effectiveness of the QMS, taking into consideration changes in the internal and external environment.
5. The National Library will strive for excellence by designing and delivering a customer-centric, cost-effective, timely and qualitative service.
6. The National Library promptly address the risks and opportunities within the organization and the Quality System will be monitored, measured, evaluated with a view to making it more effective at all levels.

• To promote and encourage the use of library materials;
• To acquire library materials generally, and, in particular, a comprehensive collection of library materials relating to Mauritius;
• To collect, receive and preserve all library materials required to be deposited in the library;
• To lend library materials to other libraries;
• To make library materials available to the public for reference;
• To participate in planning library services in Mauritius, promote research in library fields and provide assistance in information handling techniques;
• To act as the national bibliographic center and maintain the national bibliography and other bibliographies;
• To act as an organizing agency for national and international lending and exchange of library materials;
• To initiate and promote cooperation between the library and other libraries, both at national and international levels.

The National Library has the legal obligation to preserve all the materials deposited in the Library for present and future generations.
The preservation of library materials includes: 

• Binding and repairs of books, newspapers and magazines
• Photocopying
• Control of temperature, humidity and light in the collections
• Implementation of effective systems for protecting the collections against flood, cyclone and fire
• Freezing of document
• Training of library staff in preservation techniques
• User education such as informing users how to handle documents properly
• Use of protection gloves for handling rare and damaged materials
• Regular dusting and cleaning of the shelves and collections
• Digitization

The National Library is open to all users aged 18 and above. Secondary school students may be admitted upon presentation of an official recommendation from their rectors.
The National Library’s clients include:

• The general public
• Secondary school and university students
• Researchers (Local and Foreign)
• Libraries and documentation centres
• Book trade and related industries
• Government and non-government organisations 
• Professionals and professional associations