Journal of Digital Information Management Yaxin Sun, Chang Liu, Xingang Cui 11 4 2013 http://dline.info/fpaper/jdim/v11i4/6.pdf A personalized online library user training system is built. Users can do self-training, group discussions, self-testing, personal views etc in the system. To make a friendly interface of the system, users will get interested in learning various retrieval skills and other resources. Taking the Library of Mudanjiang Medical University as the example, we build a user training system based on Moodle. The framework of the system consists of three parts: system module, resource module and activity modules. By using the system, users can more effectively improve the user's information retrieval ability, better use of library resources, especially databases; libraries can expand the scope of user training, and enhance the communication between the users and the libraries.