In　the　present　work,　hierarchically　structural　TiO2　nanorods　composed　of　rutile　core　and　anatase　shell　were　successfully　synthesized　via　a　one-step　hydrothermal　route　for　the　first　time,　and　then　were　characterized　by　X-ray　diffraction　(XRD),　Raman　spectroscopy　and　scanning　and　transmission　electron　microscopy　(SEM/TEM)　measurements.　It　was　found　that　the　crystal　phases　of　the　same　can　be　easily　adjusted　by　changing　the　amount　of　the　reactant　during　the　reaction　process.　Furthermore,　the　sample　was　used　as　an　anode　for　lithium-ion　intercalation　and　exhibited　high　capacity　and　long-term　cycling　stability　due　to　the　synergistic　effects　of　dual-phase　TiO2.　For　instance,　the　capacities　of　102.7　and　84.7　mA　h　g(-1　)can　be　kept　at　10　C　for　1000　cycles　and　20　C　for　5000　cycles,　respectively.