Abstract: In order to use abundant photothermal and the dry air resources to save the energy consumption of the hot- air blast in Northwest China, a set of maize ear solar heating air aeration-drying system based on two-stage drying process was designed, the system was installed on dump flat grain bed to facilitate drying and unloading of maize ear. According to temperature changes in the drying bin, the system could achieve automatic control of the air aeration-drying system. Experiments showed that the system could dry maize ear in short time. It could save 18 hours when compared to traditional drying technology and the average drying rate was also proved to 60.8%. The design of this system provides references for the research of the breeding drying process and the corresponding equipment.