The TNAU Library System comprises of a University Library and 10 constitutional college libraries that collectively support the teaching, research and extension programmes of the University. The University Library houses a total collection of over Two lakh documents comprising of books, theses, journals, and compact discs in the fields of Agricultural science. All in-house operations in the library are fully computerized using the Koha software it provides web-based access to the online catalogue of Library. The benefit of consortia-based subscription to electronic resources is confined to its core members and also extended to all Constitutional Colleges, Research stations &KVKs through Remote access.
The Library is spread over four floors with the total covered area of 20,000 sq. ft. (approx.) and is partially air-conditioned. The library has seating capacity of 350 readers. Ground floor has Library Book transaction counter, Digital & CD Library, current Periodicals and theses are shelved in Ground floor. The Library maintains a separate collection of Reference books, Competitive exam books and allied science books in the First floor. The second floor of the library stacks comprises of Journal Back volumes, Agriculture Books and Book Bank books and Separate room for Tamil language books. In the third floor of the library houses an e- resource centre for providing access of electronic resources.