The graphene supported SnO2 nanoparticles (SnO2/graphene nanocomposites) were synthesized by afacile microwave-assisted polyol reduction method.The Na-storage performance of the as-preparedSnO2/graphene nanocomposites was evaluated as an anode material for sodium-ion batteries(SIBs),presenting a high initial reversible capacity of 220 mAhg1 at acurrent density of 0.1Ag1 and anacceptable ratecapability.This work provides an effective approach on synthesizing the SnO2/graphenenanocomposites and a potential anode material forSIBs.