The invention discloses a method for preparing a compound 
enzyme and 
probiotic preparation for feed through the 
biotransformation of corn stalks and soybean meals. The method comprises the following steps of: thoroughly mixing cooked Pu'er tea, first corn stalks, first soybean meals, first wheat 
bran, first apple 
pomace and first water which are subjected to 
pile fermentation, and carrying out acclimation culture so as to form a 
leavening agent; and thoroughly mixing the 
leavening agent, second corn stalks, second soybean meals, second wheat 
bran, second apple 
pomace and second water, and carrying out 
fermentation, thereby obtaining the compound 
enzyme and 
probiotic preparation for feed. According to the method, the compound 
enzyme and 
probiotic preparation with better various performance indexes is prepared through fermenting the corn stalks and the soybean meals by using food-grade safe 
flora with stable microbial states, so that the low-cost and high-efficiency 
biotransformation of the corn stalks and the soybean meals is realized. Meanwhile, the method disclosed by the invention has the advantages that microbes grow easily, the enzyme activity is high, the 
fermentation process is extensive, strict aseptic conditions are not required, and the industrial large-scale production is facilitated.