Cloud　computing　technology　created　a　brand　new　approach　for　further　information　resources　management　and　utilization.　Based　on　exploring　characteristics　and　applications　of　cloud　computing　technology,　the　study　in　this　paper　is　focused　on　cloud　service　with　information　resources.　The　aim　of　this　study　is　to　construct　a　cloud　service　model,　namely　Information　Resource　as　a　Service　(IRaaS).　Our　model　depicts　the　components　of　IRaaS　and　relationships　among　those　components,　which　builds　up　a　prime　foundation　for　further　studying　on　both　information　resource　management　and　service.