Abstract: “Burying” is still a primary technology for the manergement of municipal wastes at the present. But it faces the lots of problems swch as choosing the locations, increasing the working capacities year by year and reaching the dateline for the greater parts of locations. There is a method can be used to solve the above-mentioned problems, i.e. to adding a solidification agent and the mineral admixtures of industrial wastes to the aged wastes baried over 5 years, then a solidified substance will be taken and which properties including strength and durability will meet the requirments of road building materials of standard, moreover, the leaching toxicity of heavy metals in this substance will be lower than the discharge requirments of national standard. So, the second pollution dose not take place. Besides, the stability of heavy metals in the solidified substance made of aged wastes is discussed.