This paper investigated the status of the service provided by university libraries in China to cultivate digital citizens and the cognition of responsibility of cultivating digital citizens provided by university libraries. The survey found that: firstly, the number of service in the digital citizen education provided by the university library is related to the university’s level; secondly, university libraries provide the most abundant service in the areas of digital literacy, digital access and digital communication, and less service in the areas of digital law, digital etiquette and digital power; thirdly, university libraries provide the scarcest service in the area of digital trade and most university libraries consider it is no responsible to provide this service or just hold an uncertain attitude; fourthly, there is no significant correlation between the service on digital citizen education provided by university libraries and the cognition status of responsibility.