The　formation　of　excited　atom　state　5s＇　D7/2　and　its　transition　process　in　the　copper　plasma　induced　by　nanosecond　pulse　laser　are　studied　by　the　time-resolved　spectrum　technology.　The　experimental　results　indicate　the　recombination　of　electron　and　ion　and　the　collisions　among　particles　each　play　a　dominent　role　in　forming　excited　atom　state　5s＇　D7/2　at　different　tims　during　its　evolvement.　When　the　collisions　among　particles　are　severe,　the　excited　atom　state　5s＇　D7/2　mainly　transits　to　low　energy　atom　state　4p＇　4F9/2o.　500　ns　after　the　peak　of　laser　pulse　arriving　at　target　surface,　the　excited　state　5s＇　D7/2　transited　to　4p＇　4F9/2o　and　4p＇　4D7/2　with　the　same　probabilities　by　emitting　lines　CuI465.11　nm　and　CuI529.25　nm　respectively.　©　2010　Chin.　Phys.　Soc.