Premature　fracture　of　aluminum　alloy　sheet　in　blanking　process　will　seriously　reduce　the　forming　quality　and　production　efficiency　of　blanking　parts.　The　purpose　of　this　study　is　to　explore　the　feasibility　of　using　acoustic　emission　(AE)　technique　to　detect　the　crack　propagation　behavior　of　metal　sheet　during　blanking.　AE　analysis　results　provide　effective　information　about　plastic　deformation　and　damage　evolution.　However,　this　technique　cannot　determine　the　depth　of　internal　damage　and　the　state　of　crack　propagation.　The　displacement　field　measured　by　digital　image　correlation　(DIC)　method　makes　it　possible　to　monitor　the　evolution　of　strain　field　and　crack　initiation　during　deformation.　Therefore,　a　coupled　real-time　tracking　method　of　AE　and　DIC　is　proposed　to　measure　the　deformation　and　damage　evolution　process　that　occur　in　blanking　sheet.　Research　findings　suggest　that　this　method　provides　a　complete　and　accurate　description　for　the　diverse　damage　evolution　process　of　blanking　aluminum　alloy　sheet.　AE　is　a　promising　technique　used　to　characterize　and　quantify　the　crack　propagation　process　of　metallic　sheets　in　blanking.