The invention discloses an anti-corrosion surface treatment method of a gold alloy product. The anti-corrosion surface treatment method comprises the steps that the gold alloy product is subjected to activation pretreatment; the pretreated gold alloy product is soaked in a corrosion inhibitor solution and soaked for 10 min-60 min under the condition that the temperature ranges from 20 DEG C to 50 DEG C, and a self-assembly protection film is generated on the surface of the gold alloy product; and the gold alloy product with the generated self-assembly protection film is soaked in a water-soluble epoxy resin solution and soaked for 2 min-6 min at the room temperature, and an organic coating is generated on the surface of the self-assembly protection film. The self-assembly protection film and the organic coating are sequentially formed on the surface of the gold alloy product, forming of the self-assembly protection film is a spontaneous chemisorption process, and the self-assembly protection film and the surface of the gold alloy product have high bonding power; and meanwhile the self-assembly protection film can enhance the adsorption force of the organic coating, and the self-assembly protection film and the organic coating achieve the synergistic effect to achieve a better corrosion inhibition effect.