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In order to obtain the engineering control measures helpful to improve the dry fermentation efficiency, taking fresh cow dung and rice straws as raw materials, the effect of gas guide measurement and leachate-recirculation on gas production from dry fermentation was analyzed under the conditions of room temperature (ambient temperature of 22～36℃)and the total solid concentration of 16%. The results indicated that biogas efficiency was improved through regulation measures including laying vertical and horizontal vent tubes. The average volume of biogas yield was up to 0.36 m3/(m3·d) (the gas yield with raw materials was 155 m3/t of total solid), higher than the comparison garage(0.28 m3/(m3·d), the gas yield with raw materials was 120 m3/t of TS) in the whole fermentation cycle(86 d). From the effect of leached with fermentation materials, it was concluded that the garage by returning spray digestive liquid every day was more effective. Furthermore, the equal flow distribution with spray device, matching of the pump selection and layout of return pipe should be in-depth researched.