We　obtain　global　W-2,W-delta　estimates　for　a　type　of　singular　fully　nonlinear　elliptic　equations　where　the　right　hand　side　term　belongs　to　L-infinity.　The　main　idea　of　the　proof　is　to　slide　paraboloids　from　below　and　above　to　touch　the　solution　of　the　equation,　and　then　to　estimate　the　low　bound　of　the　measure　of　the　set　of　contact　points　by　the　measure　of　the　set　of　vertex　points.