The temperature of storehouse was reduced by grain cooling machine first, then the temperature of soybeans was reduced by centrifugal fan.

This article introduced the design parameters of the low-temperature warehouse,the operation of the cooling system and the method of keeping low-temperature through a design example and analyzed the design features for low-temperature warehouse stored packed grain.

This article has established the temperature of granary space distribution law at the same time by least square method,and fore- casts the temperature law following time by fuzzy neural network controller, Now that such having reduced the upkeep cost, and the temperature of granary is controlled much better.