The invention relates to a method for preparing high-
protein sacchariferous feed by straws, which is characterized in that a 
straw powder raw evaporating material is mixed with complex 
enzyme; after carrying out saccharification 
hydrolysis, the product is accumulated and fermented by 
saccharomyces cerevisiae and 
lactobacillus planetarium; after the product is dried or granulated, the high-
protein sacchariferous feed is obtained. Compared with the prior art, the invention fully utilizes 
nutrient in the straws, improves a 
nutrient component of the feed, and is beneficial to the digestive absorption of 
livestock, wherein the crude 
protein content is improved to more than 21 percent, and the crude 
fiber content is lower than 14 percent; the dosage proportion of the 
straw feed in 
mixed feed and special feed can be improved, the dosages of concentrated feed and grain are saved; an experiment indicates that by adding 5 percent of sacchariferous feed into pig feed, the weight can be increased by 6 percent, the 
economic benefits are improved by 12 percent, and the grain is saved by more than 65 percent; meanwhile, inherent resources of the 
straw are fully utilized, and the utilization ratio of the resources is improved; by reasonably utilizing the straws, the problem of environmental 
pollution caused by discarding and burning the straws is effectively solved; and the invention has the characteristics of simple and convenient operation, high degradation utilization ratio of the straws, 
high protein saccharide content, low cost and no environmental 
pollution.