Unique　one　dimensional　ZnFe2O4　hollow　fibers　with　integrated　tubular　mesoporous　nanostructures　have　been　fabricated　successfully　using　a　two-step　process,　combining　the　single-spinneret　electrospinning　and　the　simple　post-treatment　techniques.　The　original　hollow　fibers　that　were　obtained　from　the　single-spinneret　electrospinning　device　consisted　of　a　ZnFe2O4　shell　and　a　carbonaceous　inner　fiber　layer　(fiber-in-tube　structure).　The　unique　integrated　tubular　nanostructure　of　the　hollow　fiber　(tubular　structure)　was　then　achieved　by　removing　the　inner　fiber　layer　using　a　hydraulic　treatment　process.　A　series　of　analyses　were　carried　out　to　study　the　characteristics　of　the　hollow　fibers,　such　as　morphologies,　structures,　crystalline　phases,　chemical　compositions　and　pore　properties.　It　was　found　that　the　ZnFe2O4　tubular　structure　exhibited　a　higher　capacity　of　1026　mA　h　g(-1)　after　260　cycles　at　a　current　density　of　200　mA　g(-1)　than　the　fiber-in-tube　structure　(711　mA　h　g(-1))　under　the　same　experimental　conditions.　However,　the　tubular　structure　suffered　a　larger　capacity　loss　and　longer　capacity　fading　period　in　the　first　few　cycles　of　the　charge-discharge,　indicating　a　weaker　cycling　stability　compared　with　the　fiber-in-tube　structure.　These　differences　in　electrochemical　performance　during　the　charge-discharge　processes　were　due　to　the　diverse　morphologies　and　nanostructures　of　the　hollow　fibers.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.