The invention discloses water-based environment-friendly gold powder paint and a preparation method thereof, and belongs to the technical field of paint. The paint comprises a fluorocarbon emulsion, acoalescing agent, an antifreezing agent, a dispersing agent, a wetting agent, an antifoaming agent, a pH regulator, an antiseptic bactericide, a functional pigment, an anti-settling thickener and water. The gold powder paint disclosed by the invention has the advantages of being good in flashing effect, strong in adhesive force, high in hardness, good in toughness, resistant to acids and alkalis,resistant to yellowing, excellent in weather resistance and short in drying time, common problems such as bubbles and particles are not easy to occur, a paint film is smooth and fine, meanwhile, extremely low VOC (volatile organic compounds), heavy metals and the like are in an undetected range, and the product is healthy, environment-friendly, non-toxic and tasteless, can keep a flashing effectfor a long time, has a lasting decorative effect, is suitable for industries such as petroleum, metallurgy, chemical engineering, electric power, trains, automobiles, ships, bridges, machine manufacturing, hardware and electrical equipment, municipal engineering, buildings, decoration, furniture and leather, and has an excellent decorative effect and base material protection.