The invention discloses a production method of an aluminum alloy door and window. The method is characterized in that TiH2 powder, aluminum powder and borohydride titanium powder are uniformly mixed and pressed into a second prefabricated alloy block during preparing an aluminum alloy ingot; boron powder, titanium powder and aluminum powder are pressed to obtain a first prefabricated alloy block;after the first fabricated alloy block is ignited, the second prefabricated alloy block is heated, and TiH2 powder and borohydride titanium are decomposed and are further subjected to self-propagatingreaction; finally fine TiB2 particles, a hydrogen-containing titanium aluminum melt and hydrogen are generated in the second prefabricated alloy block by self-propagating reaction; high pressure is generated once hydrogen is generated, and thus the TiB2 particles and hydrogen-containing titanium aluminum melt droplets can be injected into a pre-melted pure aluminum melt to form an Al-5%Ti-xB intermediate alloy. Therefore, the size of the TiB2 particles can be reduced; the dispersing effect in the intermediate alloy is improved; and meanwhile, the environmental pollution caused by refiner preparation can be reduced, and as a result, the strength of the prepared aluminum alloy door and window can be improved, and the environmental pollution is reduced.