An energy grass comprehensive recycling method, consisting of five steps: preparing methane with energy grass, producing edible fungi with the methane residue, producing fungi residue fodder with the fungi residue, feeding livestock and poultry with the fungi residue fodder, producing organic fertilizer with the manure of the livestock and poultry. The method produces five types of commodities, methane, edible fungi, fodder, livestock and poultry and organic fertilizer, realizing efficient utilization of resources and building an efficient agricultural comprehensive recycling system.