The　purpose　of　this　paper　is　to　propose　a　laser-acoustic-combination　evaluation　system　for　historical　frescos　damage　detection.　This　article　outlines　a　diagnostic　test　system　and　procedure　with　laser-acoustic　combined　method,　advantage　of　which　is　remote　and　cause　no　damage　to　the　artwork,　and　that　is　based　on　the　frequency　response　analysis　of　the　acoustic　excitation　of　the　wall　vibration　with　laser　vibrometer　sensing.　The　detail　of　the　test　procedure　for　wall　vibration　and　the　system　of　the　measurement　instrument　is　described.　Experiments　were　performed　on　a　real　artificial　fresco　in　a　historic　curved　vault.　A　two-dimensional　map　of　curved　surface　vibration　amplitudes　is　generated　by　measuring　points　by　points　on　the　surface.　This　false-color　image　is　then　processed　through　image　analysis　techniques　to　determine　the　location　and　shape　of　the　damaged　area.　©　2021　IEEE.