In　order　to　improve　the　performance　of　processor　there　are　many　studies　in　improving　the　utilization　of　L2　Cache.　The　studies　show　that　a　good　prefetching　mechanism　is　one　of　the　most　effective　ways　to　improve　the　performance　of　L2　Cache.　In　this　paper,　we　introduce　a　Prefetching　Coordinator　in　multi-level　storage　architecture.　It　monitors　the　L2　Cache　access　patterns　as　well　as　the　L2　Cache　status,　and　dynamically　adjusts　the　aggressiveness　of　the　L2　Cache　prefetching　activities　so　as　to　improve　the　performance　of　all　system.　Then　we　introduce　it　into　multi-core　processor.　In　our　study,　we　make　an　improvement　in　prefetching　coordinator　according　to　the　specialty　of　multi-processor,　which　enhances　the　utilization　of　L2　Cache　and　needs　no　additional　cost.　©　2010　IEEE.