The Nanocomposite based on magnetit-graphene oxide Fe3O4/GO for Lithium-Ion Battery Anodes(LIBA) has been succesfully synthesized by co-precipitation method. First, GO was synthesized by Hummer’s Method and Nanoparticles Fe3O4 were synthesized by co-precipitation method and coated with PEG 6000. Then the results were characterized by XRD and SEM. From the results obtained, graphite has become graphene oxide indicated by a shift of 2θ from 26,18° to 11,7°. Nanoparticles Fe3O4 have also been successfully demonstrated with corresponding results. As well as Nanocomposite Fe3O4/GO which match the characteristics. I-V Meter results showed that nanocomposites have good electrical properties.