The utility model provides machining equipment for a local double-alloy composite aluminum profile. The machining equipment is low in production cost. The device comprises an extruder for processing afirst alloy profile, wherein a mold for molding a first alloy profile is arranged in the extruding machine; the machining equipment further comprises a conveying device for conveying the second alloyprofile. The conveying device comprises a winding disc used for winding a second alloy profile. the winding disc is movably and rotatably arranged; when the first alloy profile is continuously extruded, the second alloy profile is driven to be continuously conveyed and compounded on the surface of the first alloy profile; the second alloy profile is conveyed to an extrusion port of the first alloy profile through the winding disc; the second alloy sectional material is attached to the surface of the first alloy sectional material under the action of gravity and is bonded to the surface of thefirst alloy sectional material under the machining residual temperature of the first alloy sectional material, so that compounding of the two alloys is completed, the machining mode is few and simplein procedure, the machining efficiency is high, the defective rate is low, the consumption of raw materials is low, and the machining cost is low.