The invention provides a fabricated aluminum alloy combination shape wall. The fabricated aluminum alloy combination shape wall comprises a hanging connecting piece, a mounting plate and an aluminum alloy shape assembly, wherein the hanging connecting piece is connected with a wall body; the opposite surface of the mounting plate is fixedly connected with the hanging connecting piece; the aluminumalloy shape assembly is arranged on the front surface of the mounting plate, the aluminum alloy shape assembly includes a plurality of aluminum alloy shape pieces, and the aluminum alloy shape piecesinclude shaping boards and connecting plates and connecting pieces arranged at both ends of the shaping boards; clamping grooves are formed in the connecting pieces; and the connection plates of twoadjacent aluminum alloy shape pieces are mounted in the clamping grooves in an insertion mode. Compared with the prior art, the fabricated aluminum alloy combination shape wall has the following advantages that splicing is performed through different shaping parts, the splicing position of the shaping parts can be adjusted arbitrarily to adapt to different sizes and spaces, on-site cutting is notneeded, and environmental pollution is avoided; and meanwhile, the mounting is convenient and fast, and the construction is simple.