The invention discloses a corrosion method for low-voltage electrode foil of a V-CHIP aluminum electrolytic capacitor. The corrosion method comprises the following steps that a mixed solution of hydrochloric acid, sulfuric acid and AlCl3 is adopted for soaking, and pretreatment is achieved; the hydrochloric acid, sulfuric acid and AlCl3 solution is electrified for hole generating corrosion; intermediate treatment is conducted on the hydrochloric acid, sulfuric acid and AlCl3 solution, and washing is conducted with pure water; the steps of hole generating corrosion, intermediate treatment and washing are repeated; reaming electrifying corrosion is conducted in corrosive liquid of hydrochloric acid, sulfuric acid, AlCl3, phosphoric acid and polystyrolsulfon acid or sodium polystyrenesulfonate, soaking is conducted with the hydrochloric acid, sulfuric acid, AlCl3 and phosphoric acid solution, washing is conducted with pure water, and the steps of reaming corrosion, soaking and washing arerepeated; and lastly, soaking is conducted by adopting a nitric acid solution, and annealing treatment is conducted after washing is conducted with the pure water. The corrosive aluminum foil produced through the corrosion method has the characteristics of being small in corrosion depth, good in mechanical property and low in contact resistance after being formed and is effectively suitable for being used for the capacitor with the minimum width of 2.2 mm in the manufacturing process of the V-CHIP capacitor.