Contemplate that black phosphorene (BP) nanosheets can compensate one another between the MXene layers, thus stopping the agglomeration of MXene, and forming a extra compact microstructure. This examine efficiently synthesizes f-MXene non-covalently modified by the sturdy electrolyte PHMB. A sequence of MXene/BP nanocomposite movies are ready by the sturdy electrostatic interplay between f-MXene and BP nanosheets and verified by FTIR, XRD, and XPS. The cross-section SEM imaging additional reveals the formation of densely ordered aligned microstructures. Due to the compensation impact of BP nanosheets between f-Mxene layers, and constructed extra environment friendly thermal conductivity pathways. With a low quantity (5 wt%) of BP, the in-plane and through-plane thermal conductivity of 5-MXene/BP movie elevated to 12.71 and 0.37 W m-1 Ok-1, respectively. TGA and MCC outcomes display the versatile 5-MXene/BP movie exhibited an ultra-low whole launch price (5.8 kJ g-1) and glorious thermal stability (66.74 wt% residual carbon). In consideration of their enchancment in thermal conductive efficiency, MXene/BP nanocomposite movie may be probably the most promising candidates for thermal administration purposes.