Irregular plate-like ZnMoO4 crystals are first used as anode materials for lithium-ion batteries. ZnMoO4 crystals wrapped by reduced graphene oxide (rGO) sheets are synthesized by a facile hydrothermal method. The rGO can improve the conductivity of ZnMoO4/rGO composites. The rGO sheets can shorten the length of lithium ions diffusion paths.