We　studied　the　use　of　multiple　Raman　pumps　to　assist　fiber　optical　parametric　amplifiers　(FOPAs).　We　derived　a　theoretical　model　to　describe　the　performance　of　multiple　Raman　pump　assisted　FOPAs.　We　demonstrated　that　the　over　40　nm　flat　gain　bandwidth　provided　by　the　multiple　Raman　pumps　can　be　used　to　support　the　parametric　gain　bandwidth　of　Raman-assisted　FOPAs　(RA-FOPAs).　We　also　found　that　if　indirect　Raman　gain　contribution　dominates,　by　using　dispersion-flattened　highly　nonlinear　fiber　with　small　dispersion　slope　and　polarization-mode　dispersion　effect,　broadband　FOPA　with　broad　parametric　pump　wavelength　tuning　range　can　be　obtained　by　using　multiple　Raman　pump　assistance.　On　the　other　hand,　if　direct　Raman　gain　contribution　dominates,　the　parameters　of　the　multiple　Raman　pumps　have　to　be　chosen　carefully　to　ensure　that　the　Raman　gain　bandwidth　matches　the　parametric　gain　bandwidth　in　order　to　achieve　a　flat　gain　with　broad　gain　bandwidth　in　the　RA-FOPAs.