The　cyclic　stress-strain　constitutive　relationships　for　copper　film　smooth　specimens　with　different　damage　degrees　before　and　after　laser　irradiation　treatment　were　investigated.　Compared　with　the　changes　of　the　constitutive　relationships　under　different　damage　degrees,　a　healing　variable　for　the　repaired　copper　film　by　laser　irradiation　was　defined.　Based　on　the　analysis　of　the　healing　variable,　a　fatigue　life　prediction　method　was　proposed.　The　experimental　lives　of　the　damaged　notched　specimens　after　laser　irradiation　treatment　were　used　to　verify　the　proposed　life　prediction　method.　The　results　showed　that　the　predicted　lives　are　in　good　agreement　with　the　experimental　results.