Since　the　beginning　of　the　new　century,　energy　and　environmental　issues　have　always　been　a　hot　topic　of　discussion　and　research.　With　the　rapid　consumption　of　traditional　fossil　energy　and　environmental　problems　becoming　increasingly　prominent,　it　is　urgent　to　find　efficient　energy　storage　devices.　Lithium-ion　battery　is　a　common　and　representative　energy　storage　device　in　secondary　batteries,　and　the　structure　of　its　electrode　material　is　a　key　factor　affecting　the　electrochemical　performance　and　safe　service　life　of　the　entire　lithium-ion　battery.　Laser　is　widely　used　in　electrode　processing　due　to　its　high　energy　concentration,　small　heat-affected　zone,　high　processing　precision,　and　low　requirements　for　processing　environment.　Laser　processing　technology　for　cutting,　drying,　constructing　three-dimensional　micro/nano-structured　electrodes　or　directly　printing　battery　materials　can　greatly　reduce　manufacturing　costs　and　improve　the　electrochemical　performance.　In　this　study,　the　application　of　several　laser　processing　technologies　in　the　structure　of　the　negative　electrode　of　lithium　ion　battery　is　reviewed.　The　application　of　laser　in　electrode　cutting,　drying　and　annealing　is　discussed　from　the　perspective　of　laser　energy　concentration　and　small　thermal　influence.　Starting　from　the　relationship　of　efficiency,　the　strategy　of　constructing　a　three-dimensional　structure　on　the　negative　electrode　of　lithium　ion　battery　by　laser　processing　technology　is　summarized.　The　electrochemical　performance　and　the　service　life　of　lithium　ion　battery　are　prospected.　©　2022　SPIE.