A scientist in the United States has invented a new technology for the production of sugarcane bagasse by microbial degradation, which makes bagasse a highly digestible feed. Bagasse generally contains 10% to 30% of water, lignin accounts for about 20% of the weight, and mainly includes cellulose and residual sugar. Bagasse is properly treated, such as adding mold inhibitors after drying, chopping and grinding, adding molasses, increasing energy content and palatability, etc. Although ruminant can be used for feeding, ruminants can only digest cellulose, Pectin and sugar do not digest lignin. At the same time, lignin will also affect the digestion of other fibrous substances. Therefore, the quality of this bagasse feed is poor. The bagasse feed produced by microbial degradation does not have this problem because lignin is also converted to easily digestible substances. The production of sugar cane bagasse by microbial degradation is generally divided into two stages: In the first stage, a mixed inoculum is prepared. The method is: 2.1 kg of wheat bran and 0.9 g of rice bran are mixed and placed in a bucket. Stir well, add 7 kg of warm water at about 37° C., and adjust humidity to 70%. Then, add symbiotic basidiomycete and nitrogen to it. The microorganisms such as nitrifying bacteria, starch hydrolyzed and proteolytic microorganisms such as Aspergillus niger, and easily hydrolyzed pectin, Penicillium microorganisms and the like. These microorganisms are mixed with wheat bran and rice bran mixture and incubated at room temperature for several hours to inoculate sugar cane bagasse. In the second stage, bagasse was degraded with a mixed inoculum. The method is: First mix 1000 kg of bagasse with 700 kg of distiller's grains, and put it into a concrete pool. Inoculate with 10 kg of mixed inoculum. Incubate at 37°C for 24 hours to obtain good palatability. High digestibility bagasse feed that can be fed to dairy cows. In the production of sugar cane bagasse by microbial degradation, the reason for adding distiller's grains to bagasse is that bagasse absorbs water from the distiller's grains, which facilitates the microbial degradation of bagasse; the proteins contained in the distiller's grains can become microscopic. The source of nutrition promotes the decomposition of bagasse by microorganisms. The nitrifying genus in the inoculum oxidizes nitrogen produced by ammonia or nitric acid produced by other microorganisms; starch hydrolyzed and proteolytic microorganisms such as Aspergillus niger, various sugars produced by hydrolyzable starch, promote the growth of symbiotic basidiomycetes, and the result is that It not only decomposes cellulose in bagasse but also decomposes lignin. In this way, the bagasse feed has become an excellent feed for ruminants.