NOVELTY - Dry fermentation for preparing methane by taking sugarcane as raw material comprises: (a) pre-treatment of raw material sugarcane; (b) then directly stacking or adding 0.5-1% of Lvjieling to stir uniformly and stack; (c) uniformly mixing the mixture in (b) with the inoculum and inoculating the mixture to obtain fermentation raw material; and (d) sealing the fermentation device and controlling the reaction temperature at 35-38 degrees C to ferment and produce the methane.    USE - The method is useful for dry fermentation for preparing methane by taking sugarcane as raw material (claimed).    ADVANTAGE - The invention not only greatly relieves the problem of insufficient energy, but also is good for energy saving and environment protection. The residues are returned to the field so as to improve the soil, reduce the fertilizer use and reduce the production cost of the sugarcane.    DETAILED DESCRIPTION - Dry fermentation for preparing methane by taking sugarcane as raw material comprises: (a) pre-treatment of raw material sugarcane: cutting the harvested sugarcane leaves into sections or grinding the leaves and adding water to moisten for a period of time; (b) then directly stacking or adding 0.5-1% of Lvjieling to stir uniformly and stack; when the stacking temperature reaches more than 50 degrees C, maintaining the temperature for more than three days; (c) uniformly mixing the mixture in (b) with the inoculum and inoculating the mixture to obtain fermentation raw material; throwing the fermentation raw material to the fermentation device; and (d) sealing the fermentation device and controlling the reaction temperature at 35-38 degrees C to ferment and produce the methane; obtaining target product methane after 1-2 days; after 20-50 days of fermentation, the anaerobically degradable organic matter in the sugarcane leaf is basically transformed into methane by micro organism; when reaction gas yield of the fermentation device reduces drastically, and the reaction ends and enters a new cycle of fermentation.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow process for dry fermentation for preparing methane by taking sugarcane as raw material (Drawing includes non-English language text).