The 2D conductive material MXene（Ti3C2Tx ），electroactive tannic acid and robust aramid nanofibers are composited and vacuum-filtered to prepare self-supported flexible films with layer structure. The microstruc? ture，morphology，mechanical and electrochemical performance of Ti3C2Tx /TA/ANF films are systematically investi? gated. The results show that Ti3C2Tx /TA/ANF film exhibits a high tensile strength of 36.2 MPa and excellent flexibil? ity，which can be arbitrarily bent，folded and twisted. The Ti3C2Tx /TA/ANF film assembled flexible solid-state super? capacitor possesses a volumetric specific capacitance of 826.56 F cm-3，a superior volumetric energy density of 28.7 Wh L-3 and electrochemical stability under various bending angles.