With the rapid development of higher education,more and more people are entitled doctoral or masters degrees,resulting in the considerable increase in doctoral dissertations and masters theses.The application of IT technology renders the possibility to digitize those dissertations,which has contributed a lot to the construction of digital library.The characteristics and corresponding problems like property right,security and sharing will be discussed in this paper.And the paper makes a general introduction will be made to the specific ways adopted by the library of UESTC and its distribution of digitized dissertation resources.