The fabricated galvanized steel silos cooling technology is mature, and the temperature in the warehouse can be controlled by controlling the equipment, so that the temperature in the warehouse can be kept between 15 degrees Celsius and 20 degrees Celsius. Low temperature can prevent diseases and insect pests from infringing the grain in the breeding warehouse. At the same time, due to the characteristics of fabricated galvanized steel silos, it can be protected from chemical pollution and corrosion, so as to achieve green and harmless grain storage.