Owing　to　the　abundant　reserves　and　low　cost,　sodium-ion　batteries　(SIBs)　have　garnered　unprecedented　attention.　However,　their　widespread　adoption　is　hindered　by　the　scarcity　of　alternative　anodes　with　fast-charging　capability　and　high　stability.　To　overcome　this　challenge,　a　fast-charging　SIB　anode,　N-doped　Bi/BiOCl　embedded　in　a　carbon　framework　(Bi/BiOCl@NC)　with　a　fast　Na+　transport　channel　and　ultra-high　structural　stability,　is　developed.　During　cycling　in　ether　electrolyte,　Bi/BiOCl@NC　undergoes　a　remarkable　transformation　into　a　3D　porous　skeleton,　which　significantly　reduces　the　Na+　transport　pathway　and　accommodates　volume　changes.　By　employing　density　functional　theory　calculations　to　simulate　the　storage　behavior　of　Na+　in　the　structure,　Bi/BiOCl@NC　is　theoretically　characterized　to　have　a　low　Na+　transport　barrier　(0.056 eV)　and　outstanding　electronic　conductivity.　Such　unique　characteristics　induce　Bi/BiOCl@NC　anode　to　have　an　ultra-high　Na+　storage　capacity　of　410　mAh·g−1　at　20　A·g−1　and　exhibit　outstanding　cycling　stability　with　over　2300　cycles　at　10　A·g−1.　This　study　provides　a　rational　scenario　for　the　fast-charging　anode　design　and　will　enlighten　more　advanced　research　to　promote　the　exploitation　of　SIBs.　©　2024　The　Author(s).　Advanced　Energy　Materials　published　by　Wiley-VCH　GmbH.