The invention discloses a corn 
straw silage feed preparing technology. A corn 
straw silage feed is prepared through the steps of preparing a 
silage pond, collecting and sorting silage feed raw materials, performing 
cutting-up, adding a 
feed additive, performing loading, closing over dry substances, performing 
film coating pretreatment, and performing earth 
coating for sealed storage. According tothe corn 
straw silage feed prepared by the corn straw silage feed preparing technology disclosed by the invention, the content of a 
hazardous substance, namely flavatin, in the feed is reduced, the 
mildew and rot rate of the feed is reduced, and the mouth feel and the quality of the feed are improved; besides, the silage feed is not liable to decompose due to silage, the silage loading void content is reduced, and favorable anaerobic environment can be created for 
lactic acid bacteria fermentation, so that 
fermentation is facilitated; a layer of the dry substances are covered, so that the situation that a large quantity of 
nutrient components run off along with 
moisture is avoided, 
nutrient loss is reduced, and the fragrance of 
lactic acid of the silage is improved; and the 
feed additive is added, so that the quality of the silage feed can be improved, the 
food consumption of the feed is increased, and the 
palatability of the feed is strengthened.