A method for stripping nano-aluminum anode oxide film comprises a first pre-treatment step for processing a high-pure aluminum foil in a 1% to 10% sodium hydroxide solution with a temperature of 40 DEG C to 80 DEG C for 1 min to 10 min, a second middle treatment step, and a third film stripping step for stripping the entire oxide film along the imprint of an oxidization solution. The invention has the advantages of (1) short operation time about 20 min, (2) large area of the oxide film plate, and (3) effective removal of a barrier layer. Due to the action of an electric field, hole walls are not dissolved to keep the original profile of holes.