Application of data mining in the analysis of needs of university library users

In order to provide decision and guidance for the future development of libraries, based on the Data Mining Decision Tree C4.5 Algorithm, taking the library of Changchun Institute of Technology as an example, by structuring decision tree and mining the factors which restrain users from using the library digital resource, the author gets some potential links among the factors affacting the using of library digital resource, the needs of university library users can be analyzed effectively with this algorithm.