Abstract: As traditional information provider, the library accumulates lots of information resources in the long-term service process. Inducting data mining can mine valuable information from existing data resources, to optimize the storage of library, to meet the demand of readers and to provide decision support better for the books management personnel. The paper firstly introduces the concept of data mining and association rule mining, then applies genetic algorithm to association rule mining, finally mines some association rules about library readers and books.

Key words: genetic algorithm, data mining, library