The invention relates to a method for recycling gold for gold-bearing washing mud of a gold ore cyaniding system. The method includes the following wet process-pyrogenic process combined technologicalsteps of crushing and grinding, acid leaching, solid-liquid separation, roasting, size mixing, alkali adjusting, gold extraction with a carbon-in-leach process and screening for solid-liquid separation b; and according to conditions, conventional sulfuric acid is replaced with hydrochloric acid for acid leaching, the weight of samples entering the roasting step can be reduced, the roasting energyconsumption is reduced, the problem of secondary gold wrapping caused by generation of calcium sulfate can be solved, the gold leaching efficiency is improved, the beneficial effects of being simplein process, low in production cost, high in gold leaching efficiency, capable turning waste into wealth, environment-friendly and the like are achieved, efficient recycling of gold-bearing washing mudvaluable resources can be achieved, and the method is suitable for recycling and application of the gold in the washing mud of the gold ore cyaniding system.