The　tunnel　structural　titanates　are　absorbing　as　electrode　materials　for　rechargeable　batteries.　However,　the　electronic　conductivity　and　lithium-ion　diffusion　of　these　materials　are　seriously　influenced　by　tunnel　cations　(Na+,　K+),　which　are　not　acquainted　imperfectly　for　their　effect　in　lithium-ion　batteries.　In　the　present　research,　the　layered　structural　K2Ti6O13(KTO)　nanowires　with　a　high　aspect　ratio　and　a　large　surface　area　have　been　synthesized　through　a　general　hydrothermal　route.　When　applied　as　an　anode　material　for　lithium-ion　intercalation,　this　material　exhibited　high　and　stable　capacity,　prominent　cycling　stability,　and　remarkable　rate　capabilities.　Even　at　a　high　current　density　of　0.5　A　g−1,　a　large　reversible　capacity　of　134.6　mA　h　g−1　was　acquired　after　1000　cycles.　These　might　be　attributed　to　the　fact　that　1D　nanostructural　K2Ti6O13　with　a　high　aspect　ratio　provides　more　surface　reaction　sites　as　well　as　increase　the　charge-transfer　ability,　and　the　presence　of　K+　in　tunnels　of　K2Ti6O13　can　efficiently　improve　the　electronic　conductivity　and　Li+　diffusivity.　©　2020　Elsevier　B.V.