The invention relates to a method for preparing a gold star artificial stone by using tailings powder. The method comprises the following steps: firstly mixing and adding quartz sand, tailings powder, yellow lead, sodium carbonate, borax, copper oxide, iron powder, tin powder and phosphorus pentoxide into a quartz crucible, subjecting the mixture to melting, clarifying, homogenizing and cooling to obtain gold star stone, crushing the gold star stone particles into particles with the diameter smaller than 5 mm; mixing and uniformly stirring the tailing powders, the quartz sand, titanium dioxide and the gold star stone particles to form a mixture material, uniformly mixing unsaturated polyester resin with tert-butyl peroxy-2-ethyl hexanoate and silane coupler KH750 to form a mixture solution, adding the mixture solution into the mixture material, uniformly mixing the materials and adding the mixture into a mould to be formed, curing the mixture in a curing furnace and subjecting the mixture to cooling, grinding and polishing to obtain the tailings gold star artificial stone. According to the method, the gold star artificial stone is prepared by a large amount of tailings powder, the tailings powder is added into the gold star stone and a large amount of tailings powder is also added into the stone base material, so that the use amount of the tailings powder is large.