Abstract Big Data is IT disruptive technological change. Through the data of the surface, revealing the valuable information hidden behind them is the core of Big Data. Libraries are facing the big data challenges. How to get and store big data; How big data application would enhance the innovations in the libraries. In the bid data era, Big Data and its related technologies such as Hadoop, Hbase, cloud storage, cloud computing, data analytics and data mining research, would be the key research issues of library and information studies.
Keywords Library big data.Knowledge service. Data Mining. Cloud storage. Hadoop.