Insufficient　lithium　resource　reserves　will　severely　limit　the　development　prospects　of　lithium-ion　batteries.　As　the　next　generation　of　secondary　batteries,　sodium-ion　batteries　have　attracted　widespread　attention.　In　recent　years,　people　have　used　synergistic　bimetal　oxides　instead　of　single　metal　oxides　as　anode　materials　for　sodium　ion　batteries,　but　its　electrochemical　performance　is　still　not　ideal.　Therefore,　we　synthesized　cubic　SnO2-Co3O4　hybrids　by　oxidizing　CoSn(OH)6　precursor,　and　then　prepared　SnO2-CoO@Gr　composites　by　a　simple　hydrothermal　method.　The　SnO2-CoO@Gr-2　composite　material　with　the　graphene　content　of　9.6%　as　an　anode　material　for　sodium-ion　batteries　shows　an　initial　discharge　capacity　of　598.9　mAh　g−1　at　a　current　density　of　0.1　A　g−1,　and　still　has　a　reversible　capacity　of　302.8　mAh　g−1　after　200　cycles.　The　introduction　of　graphene　not　only　greatly　restrains　volume　expansion　of　material　during　the　cycle,　but　also　effectively　improves　the　conductivity　of　the　composite　material,　which　provides　a　great　direction　for　preparing　high-performance　sodium　ion　battery　anode　materials.　©　2021　Elsevier　B.V.