A system for generating communication subscriber description information includes an information labeling unit adapted to label original information of a specific communication subscriber, and a subscriber information generating unit adapted to generate communication subscriber description information according to communication records. A method for generating communication subscriber description information applies Ontology in the communication field, so as to obtain subscriber demand information for generating communication subscriber description information by analyzing actual communication records of the subscriber. Moreover, the generated communication subscriber description information truly reflects characteristics and requirements of the communication subscriber, thus ensuring the accuracy of the generated communication subscriber description information. The present invention is applicable to communication behaviors such as voice communication, data communication, and short messages of a subscriber.