In the past ten years, methane has a greenhouse gas, and its concentration increases by 1% per year, while an estimated worldwide annual landfill cover soil surface from escaping methane is about 20 to 70 Mtpa. Microbial methane oxidation can be carried out about 80% of global consumption of methane, the soil microbial methane oxidation can reduce methane escaping from the soil to the atmosphere. Both in domestic and foreign ash recycling in landfill cover soil behavior has performed for many years, but there is a review of domestic and foreign literature ash, mostly looks at the aspects of physical and chemical properties and heavy metals, there is no assessment of the casing methane oxidation impact. This paper mainly urban incinerator ash as a research object, and after a landfill cover soil mined to study experimentally analyze the impact of ash added methane oxidation right.