The invention discloses an aluminum profile forming method. The aluminum profile forming method comprises the first step of casting, the second step of extrusion, the third step of straightening, thefourth step of aging and the fifth step of surface treatment. The invention further discloses an aluminum profile forming die, an extrusion pipe is included, and an upper die block and a lower die block are arranged in the extrusion pipe and jointly fix a die core. The die core, the upper die block and the lower die block are detachable mechanisms, only the die core needs to be replaced during profile die replacement, and material cost is saved; through various levels of flow guiding grooves, softened cylinder aluminum can be more smoothly extruded into buffering grooves and a forming groove;through the various levels of buffering grooves, in the extrusion process, before profile extrusion forming, profiles adapt to the extrusion degree level by level, and after extrusion forming, the required tenacity, strength, appearance and the like can be achieved.