The invention discloses a medlar and red date 
enzyme and a preparation method thereof, which belong to the technical field of 
enzyme preparation. Multi-strain composite fungi 
powder is adopted as a 
leavening agent; the medlar and the red date are adopted as main raw materials; 
dietary fiber, 
pectin hydrolyzate, seasoner extracting liquor, Chinese herbal 
medicine extracting liquor, 
enzyme stabilizer and other multifunctional auxiliary raw materials are scientifically compounded and modified; low-temperature 
processing technology such as ultrasonic cleaning, 
cryogenic grinding, 
microwave-assisted high-
voltage pulse electric field processing and ultrasonic 
ripening are mainly adopted in the whole process, so that the natural colors, the 
flavor, the taste and the content of the active materials of the medlar and the red date are maintained furthest, the biological stability, the non-biological stability and the 
biological activity of the medlar and red date enzyme are obviously enhanced, the introduction of 
chemical addition agent is reduced, and the juicing rate of the medlar and the red date as well as the 
food safety of the enzyme are improved. Finally, the medlar and red date enzyme with high 
biological activity, strong stability, strong taste, 
flavor and 
appetite, long 
expiration date and edible safety is prepared.