The　dressed　four-　and　six-wave　mixings　in　a　V-type　four-level　system　are　considered.　Under　two　different　dressed　conditions,　two-　and　three-photon　resonant　Autler-Townes　splittings,　accompanied　by　enhancement　and　suppression　of　wave　mixing　signal,　are　obtained　analytically.　Meanwhile,　an　electromagnetic　induced　transparency　of　multi-wave　mixing　is　presented,　which　shows　multiple　peaks　and　asymmetric　effects　caused　by　one-photon,　two-photon　and　three-photon　resonances,　separately.　The　slow　light　propagation　multiple　region　of　multi-wave　mixing　signal　is　also　obtained.