Aluminum plate and fabricating method thereof

An aluminum plate and a fabricating method thereof are described. The fabricating method includes steps of: providing a raw material composition, wherein the raw material composition conforms to a composition ratio of an AA6XXX series aluminum alloy; performing an aluminum embryo forming step of forming an aluminum embryo by melt-casting the raw material composition; performing a hot-rolling step of hot-rolling the aluminum embryo to form a semi-processed aluminum plate with a thickness of 20 to 200 mm; performing a solid-solution and water quenching step of heating the semi-processed aluminum plate to 500~560 DEG C for 3~6 hours and of performing water quenching treatment on the semi-processed aluminum plate; performing a leveling step to flatten the semi-treated aluminum plate after the solid-solution and water quenching step; and performing a two-stage aging step to obtain the aluminum plate.