The invention relates to a coloring technology for matte aluminum profiles copying stainless steel. The coloring technology comprises the following steps: 1, carrying out washing; 2, carrying out alkaline corrosion; 3, carrying out neutralization; 4, carrying out primary nickel plating, wherein the thickness of a primary nickel-plated layer is smaller than 0.01mm; 5, carrying out chromium plating, to be specific, utilizing chromic acid with 18-22% mass concentration, utilizing ultrasonic waves to carry out vibration on an electroplating solution, heating the electroplating solution, controlling temperature between 40DEG C and 55DEG C, and electroplating one layer of chromium containing substance layer outside the primary nickel-plated layer; 6, carrying out toxicity neutralization, to be specific, washing the aluminum profiles by using water, and then utilizing a sodium pyrosulfite solution with 32-35% mass concentration to neutralize and convert hexavalent chromium in the chromium containing substance layer to non-toxic trivalent chromium; and 7, carrying out secondary nickel plating, to be specific, washing the aluminum profiles by using water, and then plating one layer of nickel outside the chromium containing substance layer, wherein the thickness of a secondary nickel-plated layer is smaller than 0.02mm.