Really　Simple　Syndication　(RSS)　has　the　characteristics　of　syndication　and　aggregation,　so　each　RSS　user　can　subscribe　what　he　needs,　and　the　difference　in　behavior　represents　RSS　users＇　individual　information　needs.　In　this　paper,　we　concern　about　RSS　user＇s　behavior.　According　to　establish　and　amend　RSS　user＇s　individual　interest　model　automatically　from　the　user＇s　implicit　feedback,　we　could　derive　of　user＇s　interest,　so　as　to　provide　RSS　user　with　targeted　information　and　realize　RSS　user＇s　personalized　information　services.　©2010　IEEE.