NOVELTY - Marsh gas fermentation material comprises main fermentation material and fermentation initiator, where fermentation main material comprises golden needle mushroom residue, Enteromorpha, corn straw, pond sludge, wheat straw, animal excrement and wine lees. Fermentation initiator comprises pond sludge, wheat straw, animal manure, ammonium bicarbonate and strain, where strain is succinic acid producing Bacteroides, butyric acid producing Vibrio, Bacillus subtilis, yeast, Methanosarcina and methanogens in the ratio of 1:5:3:3:2:2, respectively.    USE - Marsh gas fermentation material.    ADVANTAGE - The marsh gas fermentation material shortens start-up time of marsh gas fermentation and production, and increases marsh gas production rate.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing marsh gas fermentation material, which involves:    (A) taking fermentation main material raw material;    (B) crushing golden needle mushroom residue into a crusher;    (C) adding corn straw and wheat straw into the crusher;    (D) mixing the crushed golden needle mushroom residue, maize straw and wheat straw uniformly to obtain mixture;    (E) taking Enteromorpha, animal excrement and wine lees;    (F) mixing the obtained material uniformly to obtain mixture;    (G) piling the obtained mixtures;    (H) pressing the obtained layers;    (I) spraying water on the stacked material;    (J) curing the stacked material for 7-10 days, where the stacked material is turned once every 2-4 days;    (K) preparing fermentation initiator by taking fermentation initiator raw material;    (L) putting the weighed wheat straw in a container;    (M) crushing the obtained wheat straw ;    (N) adding pond sludge, wheat straw and animal manure to the crushed material;    (O) mixing the obtained material uniformly;    (P) adding strain to the mixed material;    (Q) fermenting the obtained mixture for 36 hours; and    (R) adding ammonium hydrogen carbonate to the obtained material to obtain the desired product.