The　development　of　new　generation　wearable　electronic　devices　requires　the　power　supply　with　high　power　density,　long-term　cycling　performance,　and　excellent　flexibility　and　mechanical　stability　that　would　enhance　the　durability　of　flexible　devices　during　use.　Herein,　we　designed　a　novel　strategy　for　the　preparation　of　flexible　self-supporting　nanofiber　membrane　with　highly　dispersed　CoFe2O4　nanoparticles　embedded　in　one-dimensional　(1D)　N-doped　carbon　nanofibers　(denoted　as　CFO@NCFM)　by　electrospinning　and　subsequent　thermal　treatment　process,　which　possesses　unique　hierarchical　structure　containing　zero-dimensional　CFO@onion-like　carbon　nanospheres　and　cross-linked　three-dimensional　(3D)　fiber　network.　The　rational　combination　of　the　nano-sized　CFO　particles　with　high　theoretical　capacity　and　a　N-doped　carbon　nanofiber　conductive　skeleton　with　interconnected　3D　open　microstructure　facilitates　the　robust　penetration　of　electrolyte　into　the　electrode,　improves　the　overall　electrical　conductivity　of　the　electrode,　shortens　the　diffusion　pathways　of　Li+　ions,　and　buffers　the　volume　change　of　active　materials　during　lithiation/delithiation.　As　a　consequence,　the　optimized　CFO@NCFM　exhibits　relatively　high　electrochemical　reversible　capacity　(611.4　mA　h　g−1　at　100　mA　g−1　after　100　cycles)　and　good　cycling　stability,　as　well　as　satisfactory　rate　capability.　©　2023　Elsevier　B.V.