The　graphene-reinforced　metal　matrix　composites　(Gr/MMCs),　prepared　by　additive　manufacturing　technology,　render　a　wide　range　of　promising　applications.　The　graphene　sheets　in　Gr/MMCs　may　get　wrinkled　during　preparation,　which　renders　a　significant　influence　on　crystalline　texture　and　deformation　behavior.　Herein,　molecular　dynamics　models　of　wrinkled　graphene/aluminum　(W-Gr/Al)　composites　are　established　to　study　the　effect　of　graphene　wrinkle　angle　on　crystal　texture　of　the　metallic　matrix　during　the　sintering　process　and　mechanical　properties　of　the　resulting　composites.　The　results　indicate　that　the　sintering　temperature　significantly　affects　the　molding　quality　of　W-Gr/Al　composites,　promoting　the　transformation　of　sintering　mechanism.　Furthermore,　new　wrinkles　appear　on　initially-wrinkled　graphene　surfaces　during　the　sintering　process,　resulting　in　grain　boundaries　and　twin　boundaries　(TBs),　which　facilitate　the　refinement　of　Al　grains.　Moreover,　uniaxial　compression　tests　reveal　that　the　W-Gr/Al　composites　sintered　at　900　K　exhibit　the　highest　Young＇s　modulus　and　yield　strength.　It　has　been　demonstrated　that　the　enhancement　effect　of　composite　originates　from　the　skeleton　network,　consisting　of　wrinkled　graphene　and　TBs.　These　results　provide　significant　guidance　for　the　design　and　development　of　Gr/MMCs.