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.

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

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.