As a key feed raw material, the quality and safety of soybean meal are directly linked to the stability of the livestock breeding industry chain. In recent years, mildew in soybean meal caused by quality control loopholes before warehouse entry has not only led to significant economic losses but also posed potential risks to feed safety. Liaoning Qiushi Silo Equipment Engineering Co., Ltd., combining industry practice, conducts an in-depth analysis of the causes of soybean meal mildew and proposes scientific prevention and control solutions, providing technical support for the safe storage of soybean meal.