We　report　on　a　3D　printed　Al　anode　for　Al-air　battery　combined　with　laser　sintering　method.　We　verified　that　laser　sintering　contributed　to　effective　removal　of　the　organic　solvent　in　the　slurry　and　increased　the　conductivity　of　the　printed　anode.　By　application　of　infrared　laser　sintering,　we　significantly　improved　electrical　contacts　of　Al　nanoparticles　and　electrochemical　performance　of　Al-air　cells.　A　Pt/C　coated　hydrophobic　carbon　paper　was　used　for　air　cathode　to　provide　a　good　electrical　contact,　an　oxygen　flow　ability,　and　the　water　sealing.　Gel-style　KOH　was　introduced　as　the　electrolyte　and　waterways　also　utilized　in　the　chemical　reaction.　The　laser　sintered　Al-air　battery　could　provide　239　mAh/g　discharge　capacity　and　a　0.95　V　operation　voltage.　Also,　a　3D　structured　anode　was　fabricated　by　3D　printing　the　active　material　on　current　collectors　to　achieve　a　high　mass-loading　with　active　material　thickness　of　360　mu　m,　560　mu　m　and　680　mu　m　for　1,　2　and　3　layers　3D　printed　electrodes.　The　battery　cells　provide　areal　discharge　capacities　of　1.5　mAh/cm(2),　2.8mAh/cm(2),　and　3.23　mAh/cm(2),　respectively　for　1,　2　and　3　layers-electrodes.　(C)　2018　The　Electrochemical　Society.