The mechanism of artificial soil represents the movement process of material balance, material conversion, material flow and circulation of materials in the human society and nature. The mechanism of artificial soil is like a “ black hole ” , opening its huge mouth and stomach, devouring the residual mineral of the 5 billion t/y ores after ore dressing (except those with radioactive elements and heavy metals), 1 billion t/y solid waste produced by industry and construction and coal ash (except harmful substances), about 1 billion organic wastes including animal wastes, straws and household garbage. After “ being digested ” , the wastes that would pollute and destroy the environment will be changed into 5-6 billion t/y artificial soil to make up for the 5-6 billion t/y loss of soil erosion in China. The sites for artificial soil should be 70 m above the sea level and the human and animal wastes will be handled by the closed recycle technology and will not be permitted to be discharged into water bodies. Industrial water will be 100% recycled. Embark on the road of organic agriculture and reduce the reliance on chemical fertilizers and pesticides. The quality of artificial soil would be excellent and the content of heavy metals and harmful chemicals would be reduced to close to zero if necessary. The artificial soil can be used for at least 10,000 years if it is not polluted nor destroyed and the crops and the manufactured food from the crops produced from the artificial soil will be safe.