The　effect　of　curvature　on　the　film　cooling　characteristics　of　Double-Jet　Film　Cooling　(DJFC)　was　numerically　investigated　using　three-dimensional　Reynolds-Averaged　Navier-Stokes　(RANS).　The　low-Reynolds　number　shear　stress　transport　(SST)　model　was　employed　as　the　turbulence　closure　model.　Six　different　curved　surfaces　and　a　flat　surface　were　tested　numerically.　The　blowing　ratios　were　from　0.66　to　1.99,　and　the　compound　injection　angle　with　respect　to　the　cooled　surface　was　30　degree.　The　blowing　ratios　and　the　curvature　of　cooled　surface　have　crucial　effects　on　the　film　cooling　effectiveness.　The　numerical　results　show　that　there　are　two　peek　value　of　the　averaged　film　cooling　effectiveness　along　the　mainstream　direction.　The　results　also　indicate　that　the　film　cooling　effectiveness　of　a　specified　curved　surface　depends　on　the　reasonable　selection　of　the　slope　of　curved　surface　and　blowing　ratios.