Abstract: Drying maize is an inevitable choice for longterm storage in Northwest Shandong. There are few naturally dried maize and high moisture in that year, which is not suitable for longterm storage. According to the storage characteristics of drying maize,combined with some common insect and mold control problems and measures taken in practical work, different ways and measures shall be taken for the storage of maize under different warehouse conditions to reduce the pollution of insects and molds on grain and ensure the safety of grain storage, so as to achieve better social and economic benefits.