The　Volume-Surface　Current　Continuity　Method　(VSCCM)　is　presented　to　analyze　electromagnetic　radiation　from　microstrip　antenna.　The　microstrip　antenna　is　discretized　into　small　triangular　patches　on　conducting　surface　and　tetrahedral　volume　cells　in　dielectric　region.　The　Method　of　Moments　(MoM)　is　applied　to　solve　the　integral　equation.　An　equation　contains　the　restriction　relation　between　the　volume　and　surface　current　coefficient　is　derived　from　the　current　continuity　equation　at　those　parts　where　the　conducting　surface　is　in　contact　with　the　dielectric　material.　A　simple　equivalent　strip　model　is　introduced　in　the　treatment　of　the　feeding　probe　in　VSCCM.　The　VSCCM　can　reduce　the　unknowns　required　to　be　solved　in　MoM,　as　well　as　the　condition　number　of　the　matrix　equation.　Numerical　results　are　given　to　validate　the　accuracy　and　efficiency　of　this　method.　©　2012　Science　Press,　Institute　of　Electronics,　CAS　and　Springer-Verlag　Berlin　Heidelberg.