The invention discloses an M-bit binary MAX phase material as well as a preparation method and application thereof. The molecular formula of the MAX phase material is represented as (Mx, M'y) n + 1AXn, 0lt; xlt; 1, 0lt; yt; Yt; x + y = 1, M and M'are respectively Ta, Sc, Hf, V, Nb, Mo, Zr, Cr, Ti, Mn or Y elements, M is different from M ', A is Sn, Al, Zn, Cu, Ge, Cd, Ga, In, Pb, S, Si or P elements, X is C and / or N elements, and n is 1, 2, 3 or 4. The preparation method is free of tedious processes and easy to implement, related elements of the components can be regulated and controlled according to requirements and application, members of the MAX phase
material system are expanded, possibility is provided for obtaining more M-bit binary two-dimensional
MXenes materials, and the MAX phase material has potential application prospects in the fields of ultrahigh temperature,
biomedicine, energy and the like.