S : Graphene and its derivatives were reviewed in detail, such as strengthening phase and the application scope and applicable difference between the different preparation methods of metal matrix composites are compared and analyzed between the traditional preparation methods of the classification of the characteristics and application direction, mainly puts forward the process step is flexible, controllable high new graphene preparation of the method of laser reinforced metal matrix composite material manufacturing technology.In-depth discussion of graphene and its derivatives as enhancement phase, brought in the metal matrix composite mechanics, tribology, electricity, the change of metal corrosion resistance performance, compared the graphene and derivatives as enhanced relative to aluminum, magnesium, nickel, copper, titanium metal matrix composites, such as performance improvement and improve the level and still exist in different metal matrix composites reinforced phase all sorts of agglomeration and dispersion problem and the interface bonding of metal substrate and the treatment scheme is put forward, finally put forward the preparation of graphene metal matrix composites in the future development direction and new preparation technology of the practical problems still exist.