Matrix material and restoration method for ecological restoration of gangue dump of mining area

The invention provides a matrix material and restoration method for ecological restoration of a gangue dump of a mining area. The matrix material consists of two parts, i.e., a seed germination layer and a root inducing layer and is mainly prepared from loam, acidified coal gangue, inorganic nonmetallic minerals, plant fibers, a water retention agent, an agglomerating agent, a disinfectant, a compound fertilizer, a seed mixture and the like. The matrix material has the characteristics of water retention, fertilizer retention, good stability, erosion resistance, easiness in plant establishment and the like; and by using wastes such as the coal gangue as main matrix materials, the consumption of imported soil can be effectively lowered, the soil environment of abandoned mines is improved, the environmental pollution is reduced, and the ecological restoration cost is reduced.