RSS is a kind of format which describes and synchronizes website content and RSS is based on XML.Because RSS is simple,normative,current,self-building and so on,more and more sites begin to use RSS to issue information.RSS Reader is one of RSS technology concrete applications.The thesis first introduces RSS Reader's correlative knowledge,then proposes RSS Reader 1.0(for short RSSR),finally summarizes and points out RSSR's some places which should be improved on.