In northern China, for local grain depot or big farmers, the problems of storing high moisture corn are serious, mainly because of the poor storage technologies and equipments, which leads to heavy losses of corn, high rate of mold , poor quality and finally to the shrink of farmers' profit. The new model of combined steel mesh drying grain bin was steel net structure whose size was adjustable. It can keep the high moisture corn in good quality by natural ventilation and mechanical overturn. When the temperature outside is about 20 ℃, the moisture of high moisture corn can be reduced to 14% by only mechanical overturn 3~4 times. With low energy consumption and small cost, the bin can ensure the quality and quantity of the storage grain, and also the profit.