In　order　to　meet　the　needs　of　user　requirements　and　data　transfer　efficiency　in　the　diversified　outsourcing　computing.　Study　the　relationship　between　data　migration　order　and　Data　storage　topology,　by　the　dynamic　characteristics　of　P-sets.　Through　the　analysis　of　the　data　transmission　principle　of　network　storage　system　and　define　the　weights　[d]　of　data　migration,　builds　the　dynamic　adaptive　data　migration　algorithm.　And　with　a　given　topology　matrix　as　the　background　shows　the　effectiveness　of　the　approach.