Pulsed　laser　ablation　of　solid　target　has　very　wide　applications　in　many　areas　at　present.　However,　most　theoretical　and　experimental　investigations　focus　on　the　interaction　between　pulsed　laser　and　solid　target　with　flat　surface.　It　is　significant　for　practical　application　of　pulsed　laser　to　research　it　interact　with　a　non-smooth　target　surface.　In　this　paper,　time-resolved　observation　using　ICCD　camera　has　been　performed　to　research　process　of　plasma　induced　by　nanosecond　laser　pulse　ablation　of　copper　target　with　a　rough　plaque.　The　experiment　result　shows　the　copper　target　is　ionized　at　first　and　plasma　plume　then　produce.　Moreover,　the　plasma　plume　produce　again　at　the　end　of　the　laser　pulse　because　large　amount　of　particles　moves　towards　the　target　and　transfer　energy　to　the　surface　resulted　in　ionization.　(C)　2013　Elsevier　B.V.　All　rights　reserved.