Abstract: The effects of the following factors(measures) on the generation of methane in bioreactor landfill were investigated through a simulation experiment. These factors(measures) are leachate recirculation rate, leachate heating before recirculation and microorganism inoculating by mixing sludge with solid waste. The research result shows that leachate heating before recirculation and microorganism inoculating by mixing sludge with the waste can quicken the generation of methane and accelerate the stabilization of solid waste, while a lower leachate recirculation rate is in favor of the generation of methane, but make against the stablilization of solid waste.