A　green　and　simple　biomineralization-inspired　method　to　create　＂net＂-like　interconnected　TiO2　nanoparticles　conformably　covering　reduced　graphene　oxide　(RGO)　with　high　loading　density　is　reported.　This　method　uses　polyamine　as　both　the　biomineralization　agent　and　linker　to　manipulate　the　nucleation,　growth,　and　crystallization　of　TiO2　nanoparticles　on　the　surface　of　graphene　oxide.　The　obtained　TiO2/RGO　composites　demonstrate　sub-10-nm　TiO2　nanoparticles　with　(001)　facets,　ultrathin　thickness　(10-12　nm),　and　a　high　surface　area　of　172　m(2)　g(-1).　When　used　as　anode　material　for　lithium　ion　batteries,　the　material　displayed　excellent　rate　capability　and　long　cycle　life;　a　capacity　of　155　mAh　g(-1)　is　obtained　after　50　cycles　at　the　rate　of　5C　(1C　=　168　mA　g(-1))　and　a　specific　capacity　of　115　mAh　g(-1)　is　retained　after　2000　cycles　at　the　rate　of　25C,　which　is　much　higher　than　that　of　mechanically　mixed　TiO2/graphene　composites.　Detailed　discharge　curve　analysis　reveals　that　the　high　rate　and　cycle　performance　are　partly　a　result　of　the　reversible　interfacial　lithium　storage　of　materials,　which　might　be　attributed　to　the　pores　in　the　TiO2　nets　on　the　RGO　and　may　provide　a　sufficient　number　of　interfaces　for　accepting　both　electrons　and　lithium　ions.