Abstract: The utilization and disposal of mine solid waste resource is the focus of scientific research in the field of mine and mining.In order to meet the needs of mine abandoned land reclamation and ecological restoration,a method for the cultivation of mixed soil and its preparation are put forward on the basis of the investigation of natural mixed soil and vegetation characteristics in mountainous areas.At the same time,pot experiment and pot experiment research showed that the solid waste mixed soil matrix can be easily prepared for growing plants with the solid waste and good soil (fine grained soil) by this method；Usage of the mixed soil for waste land reclamation and ecological restoration not only disposes a large number of mine solid waste,but also quickly achieves mine ecological recovery and effectively prevents the debris flow,soil erosion,environmental pollution and other environmental problems,with remarkable ecological benefits,social benefits and economic benefits.

Key words: Mix proportion, Composite soil, Solid waste, Fine grain, Coarse grain, Tailings, Ecological restoration, Abandoned land