The libraries now still play as the role of information provider without effectively aggregate inforrmations to knowledge based on users' requirement, though the budget of electronic resources increasing yearly. For example, the aggregative search of library resources just shorten the time users attach the electronic resources without providing real knowledge. This research proposed a general value-added model of electronic resources during the process building the citation analysis system. With the model, the library would be offer some value-added enhancement, even knowledge provider furthermore, based on the typical knowledge from aggregation of electronic resources in the library.