Abstract: A system for displaying patent classification information includes: a user processing module (301) for transmitting patent downloading queries and patent classification orders, and displaying star-hyperbolic trees on a display unit; a data downloading module (403) downloading summary data on the patents from the IP information website by converting the patent downloading queries into XML queries; a dynamic classifying module (401) for classifying the patents based on the summary data according to the patent classification orders; an XML converting module (310) for converting the patent classifications into XML documents; and an image converting module (320) for converting the XML documents into star-hyperbolic trees each including a plurality of nodes. A related method is also disclosed.