The mission of the Belleville Public Library and Information Center will be:

- to act as an information center providing information and books, media and other materials, locally, state-wide, nationally and globally
- to act as a formal education support center, assisting students of all ages including public, parochial, college, university, and private schools
- to act as a continuing education, recreation and cultural center
- to act as a preschool center of learning; and to act as a community activities and community information center while providing open and equal access for all the people that use the library.