Ecological restoration method for strong acid tailings abandoned land

The invention discloses an ecological restoration method for a strong acid tailings abandoned land. The method includes the steps that a site is leveled and cleaned and then covered with neutral slag from a metal mine environment-friendly treatment system; a compound fertilizer, an organic fertilizer and artificial soil are added to the covering layer so as to improve the fertility of the covering layer; resistant plants are screened and subjected to seedling raising; planting is conducted in stages through a grass-shrub-arbor combined repairing mode, grass seeds are sown first, arbor and shrub nutrient bag seedlings are planted after the grass seeds sprout, and then tending management is conducted. According to the method, the neutral slag creatively serves as borrowed soil to cover a test field, waste is used for treating waste, and the effects of stabilizing heavy metal ions and reducing acidic mine wastewater are achieved. By gradually building an artificial vegetation community, natural ecological succes