The　application　of　smart　devices　and　artificial　intelligence　(AI)　technologies　has　led　to　an　increase　in　electromagnetic　interference　(EMI)　issues.　Compared　with　the　traditional　metal-based　EMI　shielding　materials,　lighter　and　more　efficient　polymer-based　EMI　shielding　materials　have　a　broader　application　prospect.　In　this　work,　we　utilized　electrospinning　and　calcination　techniques　to　synthesize　Fe3O4　nanofibers　and　employed　a　layer-by-layer　assembly　method　to　create　a　Ti3C2Tx　MXene/Fe3O4/carbon　fiber　fabric/waterborne　polyurethane　(Ti3C2Tx　MXene/Fe3O4/CFf/WPU)　composite　fabric.　Our　findings　reveal　that　this　composite　fabric　possesses　superior　EMI　shielding　capabilities.　Specifically,　the　FMC12.5-5　composite　material,　which　contains　12.5　wt　%　Fe3O4　and　5　wt　%　Ti3C2Tx,　demonstrates　remarkable　electromagnetic　interference　(EMI)　shielding　effectiveness　(SE)　(up　to　43.6　dB)　at　a　mere　0.4　mm　thickness　with　a　low　MXene　content.　Meanwhile,　the　fabric　achieves　a　significant　anisotropic　thermal　conductivity　of　up　to　0.46　W/(m　K),　fulfilling　the　in-plane　thermal　conductivity　requirement.　Additionally,　the　sandwich-structured　composite　exhibits　excellent　mechanical　performance　(Young＇s　modulus　is　up　to　113.5　MPa　and　tensile　strength　reaches　15.7　MPa)　and　is　flexible　enough　to　endure　repeated　bending,　folding,　and　shaping.　It　maintains　a　reliable　electrothermal　conversion　capability,　achieving　temperatures　of　up　to　106　degrees　C　at　only　2.5　V.　This　study　has　expanded　the　exploration　of　enhanced　electromagnetic　interference　(EMI)　shielding　and　electrothermal　conversion　capabilities.