The application of the technology of transverse ventilation for cooling wheat in warehouse was studied. The result showed that the ventilation path of transverse ventilation was more than treble that of tradition ventilation; heat exchange efficiency was significantly improved; the amount of cold air was not wasted; the energy consumption was decreased; the temperature uniformity inside of the heap was much better. The temperature in the height direction of wheat pile was consistent. The average difference of temperature gradient along the cool air direction was less than 0.5 ℃/m. The application effect of transverse ventilation technology for cooling grain in the warehouse was similar to the traditional vertical cooling ventilation,and the cooling efficiency was higher and the temperature uniformity was much better.