This　paper　primarily　investigates　the　effects　of　chemically　grafted　modified　carbon　fibers　on　the　bonding　properties　of　fiber　metal　laminates　(FMLs).　Relative　elemental　content　on　the　carbon　fibers＇　surface　was　performed　via　X-ray　photoelectron　spectroscopy　(XPS).　Scanning　electron　microscopy　(SEM)　was　utilized　to　observe　the　material　microstructure.　The　effect　of　chemically　grafted　carbon　fibers　on　the　bond　strengths　of　FMLs　was　experimentally　investigated　through　lap　joint　testing.　The　carbon　nanotubes　(CNTs)　grafting　concentration　and　curing　conditions　of　the　samples　were　also　investigated.　The　test　results　demonstrate　that　grafting　concentrations　of　0.1,　0.2,　and　0.3　mg/mL　CNT　solution　increased　the　bond　strength　of　the　cured　samples　under　vacuum　conditions　by　63.51%,　87.16%,　and　71.56%,　respectively.　In　addition,　the　bond　strengths　of　vacuum-cured　samples　were　also　increased.　©　2020　by　the　authors.