▎ 摘　　要

NOVELTY - Surface treatment of magnesium alloy anodic film includes taking magnesium alloy, performing ultrasonic treatment with ethanol, sonicating for 0.5-3 hours and 100-1000 W, dispersing in 5-45 mg/L graphene to obtain mixture A, mixing nano-rare earth oxide particles in deionized water, adding 5-20 mL ethylene glycol, performing ultrasonic treatment for 0.5-1.5 hours and 100-1000 W to obtain mixture B, mixing mixtures A and B, and ultrasonic mixing for 0.5-1 hour to obtain nano graphene-rare earth oxide suspension. USE - Method for preparing magnesium alloy anodic film. ADVANTAGE - The magnesium alloy anodic film is corrosion resistant and has simple preparation.