Graphene-aluminum　(Gr/Al)　composite　laminated　by　aluminum　(Al)　and　graphene　sheets　alternately　has　excellent　mechanical　properties　thanks　to　the　high　strength,　high　Young＇s　modulus　and　the　two-dimensional　atomic　structure　of　graphene.　In　this　study,　the　uniaxial　tensile　properties　of　Gr/Al　nano-laminated　composite　are　studied　by　molecular　dynamics　(MD)　method.　It　is　found　that　the　thickness　of　Al　layer　has　a　significant　effect　on　the　tensile　strength　and　Yang＇s　modulus　of　the　Gr/Al　composite.　Composite　with　a　smaller　thickness　of　Al　layer　shows　better　properties.　Graphene　not　only　block　propagation　of　dislocations,　but　bear　most　of　the　loads,　resulting　in　higher　Young＇s　modulus,　tensile　strength　and　failure　strain　of　the　composites　than　those　of　pure　Al.　The　simulation　of　temperature-effect　shows　that　the　Gr/Al　composite　is　difficult　to　arise　plastic　deformation　at　low　temperature,　which　lead　to　a　higher　strength　and　modulus　of　the　composite.　In　addition,　the　effect　of　graphene　stacking　on　the　properties　of　composites　is　investigated.　Through　tensile　tests　at　the　vertical　and　parallel　interfaces,　it　is　found　that　graphene　stacking　may　lead　to　a　reduced　performance　of　the　composite.　©　2019　Trans　Tech　Publications　Ltd,　Switzerland.